Refactored Editor to use a reusable iframe for all notes. Also got cursor positioning working in Firefox.
Still needs more cleanup/bugfixing.
This commit is contained in:
Dan Helfman
parent
2e3501f5fc
commit
a05081166a
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@ -773,6 +773,10 @@ h1 {
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.invisible {
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visibility: hidden;
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height: 0;
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padding: 0;
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margin: 0;
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border: 0;
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}
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.undisplayed {
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@ -4,6 +4,15 @@ MSIE6 = /MSIE 6\.0/.test( navigator.userAgent );
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MSIE = /MSIE/.test( navigator.userAgent );
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OPERA = /Opera/.test( navigator.userAgent );
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REUSABLE_IFRAME = createDOM( "iframe",
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{
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// iframe src attribute is necessary in IE 6 on an HTTPS site to prevent annoying warnings
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"src": MSIE6 && "/static/html/blank.html" || "about:blank",
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"frameBorder": "0",
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"scrolling": "no",
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"class": "note_frame invisible"
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}
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);
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function Editor( id, notebook_id, note_text, deleted_from_id, revision, read_write, startup, highlight, focus, position_after, start_dirty, own_notes_only ) {
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this.id = id;
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@ -28,11 +37,53 @@ function Editor( id, notebook_id, note_text, deleted_from_id, revision, read_wri
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this.div = null;
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this.title = "";
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this.create_div( position_after );
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// if the Editor is to be focused, create an editable iframe. otherwise just create a static div
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if ( ( highlight || focus ) && this.edit_enabled )
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this.create_iframe( position_after );
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this.claim_iframe( position_after );
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}
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Editor.prototype.create_div = function ( position_after ) {
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var self = this;
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// if there is already a static note div for this Editor, connect up the note controls and bail
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var static_note_div = getElement( "static_note_" + this.id );
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if ( static_note_div ) {
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this.note_controls = getElement( "note_controls_" + this.id );
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this.connect_note_controls( true );
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this.div = static_note_div;
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this.scrape_title();
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this.focus_default_text_field();
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this.connect_handlers();
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return;
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}
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var static_contents = createDOM( "span", { "class": "static_note_contents" } );
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static_contents.innerHTML = this.contents();
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this.div = createDOM(
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"div", { "class": "static_note_div", "id": "static_note_" + this.id }, static_contents
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);
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this.div.editor = this;
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this.create_note_controls();
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this.connect_note_controls();
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var note_holder = createDOM( "div", { "id": "note_holder_" + this.id },
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this.note_controls,
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this.div
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);
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if ( position_after && position_after.parentNode )
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insertSiblingNodesAfter( position_after, note_holder );
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else
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this.create_div( position_after );
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appendChildNodes( "notes", note_holder );
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this.scrape_title();
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this.focus_default_text_field();
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this.connect_handlers();
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signal( self, "init_complete" );
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}
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Editor.prototype.create_note_controls = function () {
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@ -130,7 +181,8 @@ Editor.prototype.connect_note_controls = function ( store_control_buttons ) {
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}
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}
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Editor.prototype.create_iframe = function ( position_after, click_position ) {
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Editor.prototype.claim_iframe = function ( position_after, click_position ) {
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var self = this;
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var iframe_id = "note_" + this.id;
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// if there is already an iframe for this Editor, bail
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@ -138,74 +190,60 @@ Editor.prototype.create_iframe = function ( position_after, click_position ) {
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if ( iframe )
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return;
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var self = this;
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this.iframe = createDOM( "iframe",
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{
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// iframe src attribute is necessary in IE 6 on an HTTPS site to prevent annoying warnings
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"src": MSIE6 && "/static/html/blank.html" || "about:blank",
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"frameBorder": "0",
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"scrolling": "no",
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"id": iframe_id,
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"name": iframe_id,
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"class": "note_frame invisible",
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"onresize": function () { setTimeout( function () { self.resize() }, 50 ); }
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}
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);
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// claim the reusable iframe for this note, stealing it from the note that's using it (if any)
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this.iframe = REUSABLE_IFRAME;
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this.iframe.setAttribute( "id", iframe_id );
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this.iframe.setAttribute( "name", iframe_id );
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var other_div;
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if ( this.iframe.editor ) {
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disconnectAll( this.iframe.contentWindow );
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disconnectAll( this.iframe );
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disconnectAll( this.iframe.editor.document.body );
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disconnectAll( this.iframe.editor.document );
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this.iframe.editor.iframe = null;
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this.iframe.editor.document = null;
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other_div = this.iframe.editor.div;
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}
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this.iframe.editor = this;
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// if there is already a static note open for this editor, replace its div with the new iframe
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var static_note = getElement( "static_note_" + this.id );
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if ( static_note ) {
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this.note_controls = getElement( "note_controls_" + this.id );
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this.connect_note_controls( true );
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// hide the iframe and show a div in its place
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setStyle( this.iframe, { "position": "fixed" } );
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if ( other_div )
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removeElementClass( other_div, "invisible" );
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addElementClass( this.iframe, "invisible" );
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disconnectAll( this.div );
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var frame_height = elementDimensions( static_note ).h;
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insertSiblingNodesAfter( static_note, this.iframe );
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// setup the note controls
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this.note_controls = getElement( "note_controls_" + this.id );
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this.connect_note_controls( true );
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// give the invisible iframe the exact same position as the div it will replace
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setStyle( this.iframe, { "position": "fixed" } );
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setElementPosition( this.iframe, getElementPosition( static_note ) );
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// hide the iframe to make this transition appear seamless
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addElementClass( this.iframe, "invisible" );
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var frame_height = elementDimensions( this.div ).h;
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insertSiblingNodesAfter( this.div, this.iframe );
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// give the iframe the note's current contents and then resize it based on the size of the div
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this.set_iframe_contents( this.contents() );
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this.resize( frame_height );
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// give the invisible iframe the exact same position as the div it will replace
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setElementPosition( this.iframe, getElementPosition( this.div ) );
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// make the completed iframe visible, and now remove the static div
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removeElementClass( this.iframe, "invisible" );
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removeElement( static_note );
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// give the iframe the note's current contents and then resize it based on the size of the div
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var range = this.add_selection_bookmark();
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this.set_iframe_contents( this.contents() );
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this.remove_selection_bookmark( range );
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this.resize( frame_height );
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// set the iframe positioning back to standard static positioning and move the note controls
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setStyle( this.iframe, { "position": "static" } );
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insertSiblingNodesBefore( this.iframe, this.note_controls );
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// make the completed iframe visible and hide the static div
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addElementClass( this.iframe, "focused_note_frame" );
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removeElementClass( this.iframe, "invisible" );
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addElementClass( this.div, "invisible" );
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// finally, turn on design mode so the iframe is editable
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this.enable_design_mode();
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this.div = null;
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} else {
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this.create_note_controls();
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this.connect_note_controls();
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// set the iframe positioning back to standard static positioning
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setStyle( this.iframe, { "position": "static" } );
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var note_holder = createDOM( "div", { "id": "note_holder_" + this.id },
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this.note_controls,
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this.iframe
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);
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if ( position_after && position_after.parentNode )
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insertSiblingNodesAfter( position_after, note_holder );
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else
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appendChildNodes( "notes", note_holder );
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var self = this;
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this.set_iframe_contents( this.contents() );
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setTimeout( function() { self.resize(); }, 1 );
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removeElementClass( this.iframe, "invisible" );
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this.enable_design_mode();
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}
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// finally, turn on design mode so the iframe is editable
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this.enable_design_mode();
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function finish_init() {
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self.position_cursor( click_position );
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self.position_cursor( click_position, range );
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self.connect_handlers();
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}
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@ -238,6 +276,7 @@ Editor.prototype.set_iframe_contents = function ( contents_text ) {
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else if ( WEBKIT )
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padding = '0.4em 1.5em 1em 1.5em';
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// TODO: maybe just replace the document body if the <head> is already set up?
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this.document.write(
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'<html><head><style>html { padding: 0em; margin: 0; } body { padding: ' + padding + '; margin: 0; font-size: 90%; line-height: 140%; font-family: sans-serif; } h3 { padding-bottom: 0.25em; border-bottom: 1px solid #dddddd; margin-bottom: 0.75em; } a[target ^= "_new"] { background: url(/static/images/web_icon_tiny.png) right center no-repeat; padding-right: 13px; } .diff a[target ^= "_new"] { background-image: none; padding-right: 0; } a:hover { color: #ff6600; } img { border-width: 0; } .left_justified { float: left; margin: 0.5em 1.5em 0.5em 0; } .center_justified { display: block; margin: 0.5em auto 0.5em auto; text-align: center; } .right_justified { float: right; margin: 0.5em 0 0.5em 1.5em; } hr { border: 0; color: #000000; background-color: #000000; height: 1px; } ul { list-style-type: disc; } ul li { margin-top: 0.5em; } ol li { margin-top: 0.5em; } .center_text { text-align: center; } .small_text { padding-top: 0.5em; font-size: 90%; } .indented { margin-left: 1em; } .thumbnail_left { float: left; margin: 0.5em; margin-right: 1em; margin-bottom: 0.5em; border: 1px solid #999999; } .thumbnail_right { float: right; margin: 0.5em; margin-left: 1em; margin-bottom: 0.5em; border: 1px solid #999999; }</style>' +
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'<meta content="text/html; charset=UTF-8" http-equiv="content-type"></meta></head><body>' + contents_text + '</body></html>'
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@ -246,6 +285,7 @@ Editor.prototype.set_iframe_contents = function ( contents_text ) {
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}
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Editor.prototype.enable_design_mode = function () {
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console.log( "design mode:", this.document.designMode );
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if ( this.iframe.contentDocument ) { // browsers such as Firefox
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if ( this.edit_enabled )
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this.document.designMode = "On";
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@ -258,36 +298,97 @@ Editor.prototype.enable_design_mode = function () {
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}
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}
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Editor.prototype.position_cursor = function ( click_position ) {
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Editor.prototype.focus_default_text_field = function () {
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// special-case: focus any username field found within this div
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var username = getElement( "username" );
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if ( username && isChildNode( username, this.div ) )
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username.focus();
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}
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Editor.prototype.add_selection_bookmark = function () {
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// grab the current range for this editor's div so that it can be duplicated within the iframe
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var selection = window.getSelection();
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if ( selection.rangeCount > 0 )
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var range = selection.getRangeAt( 0 );
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else
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var range = document.createRange();
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// if the current range is not within this editor's static note div, then bail
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if ( range.startContainer == document || range.endContainer == document )
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return null;
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if ( !isChildNode( range.startContainer.parentNode, this.div ) || !isChildNode( range.endContainer.parentNode, this.div ) )
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return null;
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// mark the nodes that are start and end containers for the current range. we have to mark the
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// parent node instead of the start/end container itself, because text nodes can't have classes
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var parent_node = range.startContainer.parentNode
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addElementClass( parent_node, "range_start_container" );
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for ( var i in parent_node.childNodes ) {
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var child_node = parent_node.childNodes[ i ];
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if ( child_node == range.startContainer )
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range.start_child_offset = i;
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}
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var parent_node = range.endContainer.parentNode
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addElementClass( parent_node, "range_end_container" );
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for ( var i in parent_node.childNodes ) {
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var child_node = parent_node.childNodes[ i ];
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if ( child_node == range.endContainer )
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range.end_child_offset = i;
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}
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return range;
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}
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Editor.prototype.remove_selection_bookmark = function ( range ) {
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// unmark the nodes that are start and end containers for the given range
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if ( range ) {
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removeElementClass( range.startContainer.parentNode, "range_start_container" );
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removeElementClass( range.endContainer.parentNode, "range_end_container" );
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}
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}
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Editor.prototype.position_cursor = function ( click_position, div_range ) {
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if ( this.init_focus ) {
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this.init_focus = false;
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if ( this.iframe )
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this.focus();
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// special-case: focus any username field found within this div
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if ( this.div ) {
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var username = getElement( "username" );
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if ( username && isChildNode( username, this.div ) )
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username.focus();
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}
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}
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if ( this.div )
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return;
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// if requested, move the text cursor to a specific location
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if ( click_position ) {
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var FRAME_BORDER_WIDTH = 2;
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click_position.x -= this.iframe.offsetLeft + FRAME_BORDER_WIDTH;
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click_position.y -= this.iframe.offsetTop + FRAME_BORDER_WIDTH;
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if ( div_range && this.iframe.contentWindow && this.iframe.contentWindow.getSelection ) { // browsers such as Firefox
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// position the cursor by using a bookmarked text range
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var selection = this.iframe.contentWindow.getSelection();
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if ( selection.rangeCount > 0 )
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var range = selection.getRangeAt( 0 );
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else
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var range = this.document.createRange();
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if ( this.iframe.contentWindow && this.iframe.contentWindow.getSelection ) { // browsers such as Firefox
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// TODO
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} else if ( this.document.selection ) { // browsers such as IE
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var range = this.document.selection.createRange();
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range.moveToPoint( click_position.x, click_position.y );
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range.select();
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var start = getFirstElementByTagAndClassName( null, "range_start_container", this.document );
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var end = getFirstElementByTagAndClassName( null, "range_end_container", this.document );
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if ( start && end ) {
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removeElementClass( start, "range_start_container" );
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removeElementClass( end, "range_end_container" );
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if ( div_range.start_child_offset )
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start = start.childNodes[ div_range.start_child_offset ];
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if ( div_range.end_child_offset )
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end = end.childNodes[ div_range.end_child_offset ];
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range.setStart( start, div_range.startOffset );
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range.setEnd( end, div_range.endOffset );
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selection.addRange( range );
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return;
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}
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} else if ( click_position && this.document.selection ) { // browsers such as IE
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var FRAME_BORDER_WIDTH = 2;
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// position the cursor by using given click position coordinates
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var range = this.document.selection.createRange();
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range.moveToPoint(
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click_position.x - this.iframe.offsetLeft - FRAME_BORDER_WIDTH,
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click_position.y - this.iframe.offsetTop - FRAME_BORDER_WIDTH
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);
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range.select();
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return;
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}
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@ -308,61 +409,6 @@ Editor.prototype.position_cursor = function ( click_position ) {
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}
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}
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Editor.prototype.create_div = function ( position_after ) {
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var self = this;
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// if there is already a static note div for this Editor, connect up the note controls and bail
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var static_note_div = getElement( "static_note_" + this.id );
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if ( static_note_div ) {
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this.note_controls = getElement( "note_controls_" + this.id );
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this.connect_note_controls( true );
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this.div = static_note_div;
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this.scrape_title();
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this.position_cursor();
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this.connect_handlers();
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return;
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}
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var static_contents = createDOM( "span", { "class": "static_note_contents" } );
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static_contents.innerHTML = this.contents();
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this.div = createDOM(
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"div", { "class": "static_note_div", "id": "static_note_" + this.id }, static_contents
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);
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this.div.editor = this;
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// if there is already an iframe open for this editor, replace it with the new static note div
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if ( getElement( "note_" + this.id ) ) {
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disconnectAll( this.iframe.contentWindow );
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disconnectAll( this.document.body );
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disconnectAll( this.document );
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swapDOM( this.iframe, this.div );
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insertSiblingNodesBefore( this.div, this.note_controls );
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this.iframe = null;
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this.document = null;
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} else {
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this.create_note_controls();
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this.connect_note_controls();
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var note_holder = createDOM( "div", { "id": "note_holder_" + this.id },
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this.note_controls,
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this.div
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);
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if ( position_after && position_after.parentNode )
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insertSiblingNodesAfter( position_after, note_holder );
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else
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appendChildNodes( "notes", note_holder );
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}
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this.scrape_title();
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this.position_cursor();
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this.connect_handlers();
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signal( self, "init_complete" );
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}
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Editor.prototype.connect_handlers = function () {
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if ( this.document && this.document.body ) {
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// since the browser may subtly tweak the html when it's inserted, save off the browser's version
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@ -375,8 +421,8 @@ Editor.prototype.connect_handlers = function () {
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var self = this; // necessary so that the member functions of this editor object are used
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if ( this.div ) {
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connect( this.div, "onclick", function ( event ) { self.mouse_clicked( event ); } );
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if ( !this.iframe ) {
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connect( this.div, "onmouseup", function ( event ) { self.mouse_clicked( event ); } );
|
||||
connect( this.div, "onmouseover", function ( event ) { self.mouse_hovered( event ); } );
|
||||
connect( this.div, "ondragover", function ( event ) { self.mouse_dragged( event ); } );
|
||||
} else {
|
||||
|
|
@ -384,9 +430,10 @@ Editor.prototype.connect_handlers = function () {
|
|||
connect( this.document, "onkeydown", function ( event ) { self.key_pressed( event ); } );
|
||||
connect( this.document, "onkeyup", function ( event ) { self.key_released( event ); } );
|
||||
}
|
||||
connect( this.document, "onclick", function ( event ) { self.mouse_clicked( event ); } );
|
||||
connect( this.document, "onmouseup", function ( event ) { self.mouse_clicked( event ); } );
|
||||
connect( this.document, "onmouseover", function ( event ) { self.mouse_hovered( event ); } );
|
||||
connect( this.document, "ondragover", function ( event ) { self.mouse_dragged( event ); } );
|
||||
connect( this.iframe, "onresize", function () { setTimeout( function () { self.resize() }, 50 ); } );
|
||||
connect( this.iframe.contentWindow, "onpaste", function ( event ) { setTimeout( function () { self.resize() }, 50 ); } );
|
||||
connect( this.iframe.contentWindow, "oncut", function ( event ) { setTimeout( function () { self.resize() }, 50 ); } );
|
||||
}
|
||||
|
|
@ -681,7 +728,6 @@ Editor.prototype.mouse_clicked = function ( event ) {
|
|||
// otherwise, this is a read-write editor, so we've got to launch the external link ourselves.
|
||||
// note that this ignores what the link target actually contains and assumes it's "_new"
|
||||
window.open( link.href );
|
||||
event.stop();
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
@ -689,13 +735,10 @@ Editor.prototype.mouse_clicked = function ( event ) {
|
|||
if ( !link.target && /\/files\//.test( link.href ) ) {
|
||||
if ( !/\/files\/new$/.test( link.href ) ) {
|
||||
window.open( link.href );
|
||||
event.stop();
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
event.stop();
|
||||
|
||||
// load the note corresponding to the clicked link
|
||||
var query = parse_query( link );
|
||||
var title = link_title( link, query );
|
||||
|
|
@ -716,7 +759,7 @@ Editor.prototype.mouse_clicked = function ( event ) {
|
|||
else
|
||||
var click_position = event.mouse().page;
|
||||
|
||||
this.create_iframe( null, click_position );
|
||||
this.claim_iframe( null, click_position );
|
||||
}
|
||||
|
||||
// in case the cursor has moved, update the state
|
||||
|
|
@ -934,9 +977,9 @@ Editor.prototype.find_link_at_cursor = function () {
|
|||
|
||||
Editor.prototype.focus = function () {
|
||||
if ( this.div && this.edit_enabled )
|
||||
this.create_iframe();
|
||||
this.claim_iframe();
|
||||
|
||||
addElementClass( this.div || this.iframe, "focused_note_frame" );
|
||||
addElementClass( this.iframe || this.div, "focused_note_frame" );
|
||||
|
||||
if ( this.iframe ) {
|
||||
if ( OPERA )
|
||||
|
|
@ -950,9 +993,8 @@ Editor.prototype.focus = function () {
|
|||
|
||||
Editor.prototype.blur = function () {
|
||||
this.scrape_title();
|
||||
this.create_div();
|
||||
|
||||
removeElementClass( this.div || this.iframe, "focused_note_frame" );
|
||||
removeElementClass( this.iframe || this.div, "focused_note_frame" );
|
||||
}
|
||||
|
||||
Editor.prototype.contents = function () {
|
||||
|
|
@ -1040,7 +1082,6 @@ Editor.prototype.shutdown = function( event ) {
|
|||
disconnectAll( this.options_button );
|
||||
disconnectAll( this.hide_button );
|
||||
disconnectAll( iframe );
|
||||
var editor_node = iframe;
|
||||
}
|
||||
|
||||
if ( this.document ) {
|
||||
|
|
@ -1048,19 +1089,16 @@ Editor.prototype.shutdown = function( event ) {
|
|||
disconnectAll( this.document );
|
||||
}
|
||||
|
||||
if ( this.div ) {
|
||||
disconnectAll( this.div );
|
||||
var editor_node = this.div;
|
||||
this.div = null;
|
||||
}
|
||||
disconnectAll( this.div );
|
||||
var div = this.div;
|
||||
this.div = null;
|
||||
|
||||
if ( !editor_node )
|
||||
return;
|
||||
|
||||
blindUp( editor_node, options = { "duration": 0.25, afterFinish: function () {
|
||||
blindUp( iframe || div, options = { "duration": 0.25, afterFinish: function () {
|
||||
try {
|
||||
removeElement( note_controls );
|
||||
removeElement( editor_node );
|
||||
removeElement( div );
|
||||
if ( iframe )
|
||||
addElementClass( iframe, "invisible" );
|
||||
} catch ( e ) { }
|
||||
} } );
|
||||
}
|
||||
|
|
|
|||
Reference in New Issue