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Mini Shell
Mini Shell
/**
* Rich Text Query/Formatting Commands
*
* @example
* var commands = new wysihtml5.Commands(editor);
*/
wysihtml5.Commands = Base.extend(
/** @scope wysihtml5.Commands.prototype */ {
constructor: function(editor) {
this.editor = editor;
this.composer = editor.composer;
this.doc = this.composer.doc;
},
/**
* Check whether the browser supports the given command
*
* @param {String} command The command string which to check (eg. "bold", "italic", "insertUnorderedList")
* @example
* commands.supports("createLink");
*/
support: function(command) {
return wysihtml5.browser.supportsCommand(this.doc, command);
},
/**
* Check whether the browser supports the given command
*
* @param {String} command The command string which to execute (eg. "bold", "italic", "insertUnorderedList")
* @param {String} [value] The command value parameter, needed for some commands ("createLink", "insertImage", ...), optional for commands that don't require one ("bold", "underline", ...)
* @example
* commands.exec("insertImage", "http://a1.twimg.com/profile_images/113868655/schrei_twitter_reasonably_small.jpg");
*/
exec: function(command, value) {
var obj = wysihtml5.commands[command],
args = wysihtml5.lang.array(arguments).get(),
method = obj && obj.exec,
result = null;
this.editor.fire("beforecommand:composer");
if (method) {
args.unshift(this.composer);
result = method.apply(obj, args);
} else {
try {
// try/catch for buggy firefox
result = this.doc.execCommand(command, false, value);
} catch(e) {}
}
this.editor.fire("aftercommand:composer");
return result;
},
/**
* Check whether the current command is active
* If the caret is within a bold text, then calling this with command "bold" should return true
*
* @param {String} command The command string which to check (eg. "bold", "italic", "insertUnorderedList")
* @param {String} [commandValue] The command value parameter (eg. for "insertImage" the image src)
* @return {Boolean} Whether the command is active
* @example
* var isCurrentSelectionBold = commands.state("bold");
*/
state: function(command, commandValue) {
var obj = wysihtml5.commands[command],
args = wysihtml5.lang.array(arguments).get(),
method = obj && obj.state;
if (method) {
args.unshift(this.composer);
return method.apply(obj, args);
} else {
try {
// try/catch for buggy firefox
return this.doc.queryCommandState(command);
} catch(e) {
return false;
}
}
},
/**
* Get the current command's value
*
* @param {String} command The command string which to check (eg. "formatBlock")
* @return {String} The command value
* @example
* var currentBlockElement = commands.value("formatBlock");
*/
value: function(command) {
var obj = wysihtml5.commands[command],
method = obj && obj.value;
if (method) {
return method.call(obj, this.composer, command);
} else {
try {
// try/catch for buggy firefox
return this.doc.queryCommandValue(command);
} catch(e) {
return null;
}
}
}
});
Zerion Mini Shell 1.0