webui-aria2/js/libs/dijit/_editor/plugins/FontChoice.js.uncompressed.js
2012-05-01 19:52:07 +08:00

593 lines
18 KiB
JavaScript

//>>built
define("dijit/_editor/plugins/FontChoice", [
"dojo/_base/array", // array.indexOf array.map
"dojo/_base/declare", // declare
"dojo/dom-construct", // domConstruct.place
"dojo/i18n", // i18n.getLocalization
"dojo/_base/lang", // lang.delegate lang.hitch lang.isString
"dojo/store/Memory", // MemoryStore
"dojo/_base/window", // win.withGlobal
"../../registry", // registry.getUniqueId
"../../_Widget",
"../../_TemplatedMixin",
"../../_WidgetsInTemplateMixin",
"../../form/FilteringSelect",
"../_Plugin",
"../range",
"../selection",
"dojo/i18n!../nls/FontChoice"
], function(array, declare, domConstruct, i18n, lang, MemoryStore, win,
registry, _Widget, _TemplatedMixin, _WidgetsInTemplateMixin, FilteringSelect, _Plugin, rangeapi, selectionapi){
/*=====
var _Plugin = dijit._editor._Plugin;
var _Widget = dijit._Widget;
var _TemplatedMixin = dijit._TemplatedMixin;
var _WidgetsInTemplateMixin = dijit._WidgetsInTemplateMixin;
var FilteringSelect = dijit.form.FilteringSelect;
=====*/
// module:
// dijit/_editor/plugins/FontChoice
// summary:
// fontchoice, fontsize, and formatblock editor plugins
var _FontDropDown = declare("dijit._editor.plugins._FontDropDown",
[_Widget, _TemplatedMixin, _WidgetsInTemplateMixin], {
// summary:
// Base class for widgets that contains a label (like "Font:")
// and a FilteringSelect drop down to pick a value.
// Used as Toolbar entry.
// label: [public] String
// The label to apply to this particular FontDropDown.
label: "",
// plainText: [public] boolean
// Flag to indicate that the returned label should be plain text
// instead of an example.
plainText: false,
// templateString: [public] String
// The template used to construct the labeled dropdown.
templateString:
"<span style='white-space: nowrap' class='dijit dijitReset dijitInline'>" +
"<label class='dijitLeft dijitInline' for='${selectId}'>${label}</label>" +
"<input data-dojo-type='dijit.form.FilteringSelect' required='false' " +
"data-dojo-props='labelType:\"html\", labelAttr:\"label\", searchAttr:\"name\"' " +
"tabIndex='-1' id='${selectId}' data-dojo-attach-point='select' value=''/>" +
"</span>",
postMixInProperties: function(){
// summary:
// Over-ride to set specific properties.
this.inherited(arguments);
this.strings = i18n.getLocalization("dijit._editor", "FontChoice");
// Set some substitution variables used in the template
this.label = this.strings[this.command];
this.id = registry.getUniqueId(this.declaredClass.replace(/\./g,"_")); // TODO: unneeded??
this.selectId = this.id + "_select"; // used in template
this.inherited(arguments);
},
postCreate: function(){
// summary:
// Over-ride for the default postCreate action
// This establishes the filtering selects and the like.
// Initialize the list of items in the drop down by creating data store with items like:
// {value: 1, name: "xx-small", label: "<font size=1>xx-small</font-size>" }
this.select.set("store", new MemoryStore({
idProperty: "value",
data: array.map(this.values, function(value){
var name = this.strings[value] || value;
return {
label: this.getLabel(value, name),
name: name,
value: value
};
}, this)
}));
this.select.set("value", "", false);
this.disabled = this.select.get("disabled");
},
_setValueAttr: function(value, priorityChange){
// summary:
// Over-ride for the default action of setting the
// widget value, maps the input to known values
// value: Object|String
// The value to set in the select.
// priorityChange:
// Optional parameter used to tell the select whether or not to fire
// onChange event.
// if the value is not a permitted value, just set empty string to prevent showing the warning icon
priorityChange = priorityChange !== false;
this.select.set('value', array.indexOf(this.values,value) < 0 ? "" : value, priorityChange);
if(!priorityChange){
// Clear the last state in case of updateState calls. Ref: #10466
this.select._lastValueReported=null;
}
},
_getValueAttr: function(){
// summary:
// Allow retrieving the value from the composite select on
// call to button.get("value");
return this.select.get('value');
},
focus: function(){
// summary:
// Over-ride for focus control of this widget. Delegates focus down to the
// filtering select.
this.select.focus();
},
_setDisabledAttr: function(value){
// summary:
// Over-ride for the button's 'disabled' attribute so that it can be
// disabled programmatically.
// Save off ths disabled state so the get retrieves it correctly
//without needing to have a function proxy it.
this.disabled = value;
this.select.set("disabled", value);
}
});
var _FontNameDropDown = declare("dijit._editor.plugins._FontNameDropDown", _FontDropDown, {
// summary:
// Dropdown to select a font; goes in editor toolbar.
// generic: Boolean
// Use generic (web standard) font names
generic: false,
// command: [public] String
// The editor 'command' implemented by this plugin.
command: "fontName",
postMixInProperties: function(){
// summary:
// Over-ride for the default posr mixin control
if(!this.values){
this.values = this.generic ?
["serif", "sans-serif", "monospace", "cursive", "fantasy"] : // CSS font-family generics
["Arial", "Times New Roman", "Comic Sans MS", "Courier New"];
}
this.inherited(arguments);
},
getLabel: function(value, name){
// summary:
// Function used to generate the labels of the format dropdown
// will return a formatted, or plain label based on the value
// of the plainText option.
// value: String
// The 'insert value' associated with a name
// name: String
// The text name of the value
if(this.plainText){
return name;
}else{
return "<div style='font-family: "+value+"'>" + name + "</div>";
}
},
_setValueAttr: function(value, priorityChange){
// summary:
// Over-ride for the default action of setting the
// widget value, maps the input to known values
priorityChange = priorityChange !== false;
if(this.generic){
var map = {
"Arial": "sans-serif",
"Helvetica": "sans-serif",
"Myriad": "sans-serif",
"Times": "serif",
"Times New Roman": "serif",
"Comic Sans MS": "cursive",
"Apple Chancery": "cursive",
"Courier": "monospace",
"Courier New": "monospace",
"Papyrus": "fantasy",
"Estrangelo Edessa": "cursive", // Windows 7
"Gabriola": "fantasy" // Windows 7
};
value = map[value] || value;
}
this.inherited(arguments, [value, priorityChange]);
}
});
var _FontSizeDropDown = declare("dijit._editor.plugins._FontSizeDropDown", _FontDropDown, {
// summary:
// Dropdown to select a font size; goes in editor toolbar.
// command: [public] String
// The editor 'command' implemented by this plugin.
command: "fontSize",
// values: [public] Number[]
// The HTML font size values supported by this plugin
values: [1,2,3,4,5,6,7], // sizes according to the old HTML FONT SIZE
getLabel: function(value, name){
// summary:
// Function used to generate the labels of the format dropdown
// will return a formatted, or plain label based on the value
// of the plainText option.
// We're stuck using the deprecated FONT tag to correspond
// with the size measurements used by the editor
// value: String
// The 'insert value' associated with a name
// name: String
// The text name of the value
if(this.plainText){
return name;
}else{
return "<font size=" + value + "'>" + name + "</font>";
}
},
_setValueAttr: function(value, priorityChange){
// summary:
// Over-ride for the default action of setting the
// widget value, maps the input to known values
priorityChange = priorityChange !== false;
if(value.indexOf && value.indexOf("px") != -1){
var pixels = parseInt(value, 10);
value = {10:1, 13:2, 16:3, 18:4, 24:5, 32:6, 48:7}[pixels] || value;
}
this.inherited(arguments, [value, priorityChange]);
}
});
var _FormatBlockDropDown = declare("dijit._editor.plugins._FormatBlockDropDown", _FontDropDown, {
// summary:
// Dropdown to select a format (like paragraph or heading); goes in editor toolbar.
// command: [public] String
// The editor 'command' implemented by this plugin.
command: "formatBlock",
// values: [public] Array
// The HTML format tags supported by this plugin
values: ["noFormat", "p", "h1", "h2", "h3", "pre"],
postCreate: function(){
// Init and set the default value to no formatting. Update state will adjust it
// as needed.
this.inherited(arguments);
this.set("value", "noFormat", false);
},
getLabel: function(value, name){
// summary:
// Function used to generate the labels of the format dropdown
// will return a formatted, or plain label based on the value
// of the plainText option.
// value: String
// The 'insert value' associated with a name
// name: String
// The text name of the value
if(this.plainText || value == "noFormat"){
return name;
}else{
return "<" + value + ">" + name + "</" + value + ">";
}
},
_execCommand: function(editor, command, choice){
// summary:
// Over-ride for default exec-command label.
// Allows us to treat 'none' as special.
if(choice === "noFormat"){
var start;
var end;
var sel = rangeapi.getSelection(editor.window);
if(sel && sel.rangeCount > 0){
var range = sel.getRangeAt(0);
var node, tag;
if(range){
start = range.startContainer;
end = range.endContainer;
// find containing nodes of start/end.
while(start && start !== editor.editNode &&
start !== editor.document.body &&
start.nodeType !== 1){
start = start.parentNode;
}
while(end && end !== editor.editNode &&
end !== editor.document.body &&
end.nodeType !== 1){
end = end.parentNode;
}
var processChildren = lang.hitch(this, function(node, ary){
if(node.childNodes && node.childNodes.length){
var i;
for(i = 0; i < node.childNodes.length; i++){
var c = node.childNodes[i];
if(c.nodeType == 1){
if(win.withGlobal(editor.window, "inSelection", selectionapi, [c])){
var tag = c.tagName? c.tagName.toLowerCase(): "";
if(array.indexOf(this.values, tag) !== -1){
ary.push(c);
}
processChildren(c, ary);
}
}
}
}
});
var unformatNodes = lang.hitch(this, function(nodes){
// summary:
// Internal function to clear format nodes.
// nodes:
// The array of nodes to strip formatting from.
if(nodes && nodes.length){
editor.beginEditing();
while(nodes.length){
this._removeFormat(editor, nodes.pop());
}
editor.endEditing();
}
});
var clearNodes = [];
if(start == end){
//Contained within the same block, may be collapsed, but who cares, see if we
// have a block element to remove.
var block;
node = start;
while(node && node !== editor.editNode && node !== editor.document.body){
if(node.nodeType == 1){
tag = node.tagName? node.tagName.toLowerCase(): "";
if(array.indexOf(this.values, tag) !== -1){
block = node;
break;
}
}
node = node.parentNode;
}
//Also look for all child nodes in the selection that may need to be
//cleared of formatting
processChildren(start, clearNodes);
if(block){ clearNodes = [block].concat(clearNodes); }
unformatNodes(clearNodes);
}else{
// Probably a multi select, so we have to process it. Whee.
node = start;
while(win.withGlobal(editor.window, "inSelection", selectionapi, [node])){
if(node.nodeType == 1){
tag = node.tagName? node.tagName.toLowerCase(): "";
if(array.indexOf(this.values, tag) !== -1){
clearNodes.push(node);
}
processChildren(node,clearNodes);
}
node = node.nextSibling;
}
unformatNodes(clearNodes);
}
editor.onDisplayChanged();
}
}
}else{
editor.execCommand(command, choice);
}
},
_removeFormat: function(editor, node){
// summary:
// function to remove the block format node.
// node:
// The block format node to remove (and leave the contents behind)
if(editor.customUndo){
// So of course IE doesn't work right with paste-overs.
// We have to do this manually, which is okay since IE already uses
// customUndo and we turned it on for WebKit. WebKit pasted funny,
// so couldn't use the execCommand approach
while(node.firstChild){
domConstruct.place(node.firstChild, node, "before");
}
node.parentNode.removeChild(node);
}else{
// Everyone else works fine this way, a paste-over and is native
// undo friendly.
win.withGlobal(editor.window,
"selectElementChildren", selectionapi, [node]);
var html = win.withGlobal(editor.window,
"getSelectedHtml", selectionapi, [null]);
win.withGlobal(editor.window,
"selectElement", selectionapi, [node]);
editor.execCommand("inserthtml", html||"");
}
}
});
// TODO: for 2.0, split into FontChoice plugin into three separate classes,
// one for each command (and change registry below)
var FontChoice = declare("dijit._editor.plugins.FontChoice", _Plugin,{
// summary:
// This plugin provides three drop downs for setting style in the editor
// (font, font size, and format block), as controlled by command.
//
// description:
// The commands provided by this plugin are:
//
// * fontName
// | Provides a drop down to select from a list of font names
// * fontSize
// | Provides a drop down to select from a list of font sizes
// * formatBlock
// | Provides a drop down to select from a list of block styles
// |
//
// which can easily be added to an editor by including one or more of the above commands
// in the `plugins` attribute as follows:
//
// | plugins="['fontName','fontSize',...]"
//
// It is possible to override the default dropdown list by providing an Array for the `custom` property when
// instantiating this plugin, e.g.
//
// | plugins="[{name:'dijit._editor.plugins.FontChoice', command:'fontName', custom:['Verdana','Myriad','Garamond']},...]"
//
// Alternatively, for `fontName` only, `generic:true` may be specified to provide a dropdown with
// [CSS generic font families](http://www.w3.org/TR/REC-CSS2/fonts.html#generic-font-families)
//
// Note that the editor is often unable to properly handle font styling information defined outside
// the context of the current editor instance, such as pre-populated HTML.
// useDefaultCommand: [protected] Boolean
// Override _Plugin.useDefaultCommand...
// processing is handled by this plugin, not by dijit.Editor.
useDefaultCommand: false,
_initButton: function(){
// summary:
// Overrides _Plugin._initButton(), to initialize the FilteringSelect+label in toolbar,
// rather than a simple button.
// tags:
// protected
// Create the widget to go into the toolbar (the so-called "button")
var clazz = {
fontName: _FontNameDropDown,
fontSize: _FontSizeDropDown,
formatBlock: _FormatBlockDropDown
}[this.command],
params = this.params;
// For back-compat reasons support setting custom values via "custom" parameter
// rather than "values" parameter
if(this.params.custom){
params.values = this.params.custom;
}
var editor = this.editor;
this.button = new clazz(lang.delegate({dir: editor.dir, lang: editor.lang}, params));
// Reflect changes to the drop down in the editor
this.connect(this.button.select, "onChange", function(choice){
// User invoked change, since all internal updates set priorityChange to false and will
// not trigger an onChange event.
this.editor.focus();
if(this.command == "fontName" && choice.indexOf(" ") != -1){ choice = "'" + choice + "'"; }
// Invoke, the editor already normalizes commands called through its
// execCommand.
if(this.button._execCommand){
this.button._execCommand(this.editor, this.command, choice);
}else{
this.editor.execCommand(this.command, choice);
}
});
},
updateState: function(){
// summary:
// Overrides _Plugin.updateState(). This controls updating the menu
// options to the right values on state changes in the document (that trigger a
// test of the actions.)
// It set value of drop down in toolbar to reflect font/font size/format block
// of text at current caret position.
// tags:
// protected
var _e = this.editor;
var _c = this.command;
if(!_e || !_e.isLoaded || !_c.length){ return; }
if(this.button){
var disabled = this.get("disabled");
this.button.set("disabled", disabled);
if(disabled){ return; }
var value;
try{
value = _e.queryCommandValue(_c) || "";
}catch(e){
//Firefox may throw error above if the editor is just loaded, ignore it
value = "";
}
// strip off single quotes, if any
var quoted = lang.isString(value) && value.match(/'([^']*)'/);
if(quoted){ value = quoted[1]; }
if(_c === "formatBlock"){
if(!value || value == "p"){
// Some browsers (WebKit) doesn't actually get the tag info right.
// and IE returns paragraph when in a DIV!, so incorrect a lot,
// so we have double-check it.
value = null;
var elem;
// Try to find the current element where the caret is.
var sel = rangeapi.getSelection(this.editor.window);
if(sel && sel.rangeCount > 0){
var range = sel.getRangeAt(0);
if(range){
elem = range.endContainer;
}
}
// Okay, now see if we can find one of the formatting types we're in.
while(elem && elem !== _e.editNode && elem !== _e.document){
var tg = elem.tagName?elem.tagName.toLowerCase():"";
if(tg && array.indexOf(this.button.values, tg) > -1){
value = tg;
break;
}
elem = elem.parentNode;
}
if(!value){
// Still no value, so lets select 'none'.
value = "noFormat";
}
}else{
// Check that the block format is one allowed, if not,
// null it so that it gets set to empty.
if(array.indexOf(this.button.values, value) < 0){
value = "noFormat";
}
}
}
if(value !== this.button.get("value")){
// Set the value, but denote it is not a priority change, so no
// onchange fires.
this.button.set('value', value, false);
}
}
}
});
// Register these plugins
array.forEach(["fontName", "fontSize", "formatBlock"], function(name){
_Plugin.registry[name] = function(args){
return new FontChoice({
command: name,
plainText: args.plainText
});
};
});
});