mirror of https://github.com/vitalif/phantomjs
92 lines
3.0 KiB
JavaScript
92 lines
3.0 KiB
JavaScript
// This allows creating a new web page using the construct "new WebPage",
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// which feels more natural than "phantom.createWebPage()".
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window.WebPage = function() {
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var page = phantom.createWebPage(),
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handlers = {};
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function defineSetter(handlerName, signalName) {
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page.__defineSetter__(handlerName, function(f) {
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if (handlers && typeof handlers[signalName] === 'function') {
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try {
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this[signalName].disconnect(handlers[signalName]);
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} catch (e) {}
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}
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handlers[signalName] = f;
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this[signalName].connect(handlers[signalName]);
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});
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};
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// deep copy
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page.settings = JSON.parse(JSON.stringify(phantom.defaultPageSettings));
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defineSetter("onLoadStarted", "loadStarted");
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defineSetter("onLoadFinished", "loadFinished");
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defineSetter("onResourceRequested", "resourceRequested");
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defineSetter("onResourceReceived", "resourceReceived");
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defineSetter("onAlert", "javaScriptAlertSent");
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defineSetter("onConsoleMessage", "javaScriptConsoleMessageSent");
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page.open = function () {
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if (arguments.length === 1) {
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this.openUrl(arguments[0], 'get', this.settings);
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return;
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}
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if (arguments.length === 2) {
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this.onLoadFinished = arguments[1];
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this.openUrl(arguments[0], 'get', this.settings);
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return;
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} else if (arguments.length === 3 && typeof arguments[2] === 'function') {
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this.onLoadFinished = arguments[2];
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this.openUrl(arguments[0], arguments[1], this.settings);
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return;
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} else if (arguments.length ===3) {
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this.openUrl(arguments[0], {
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operation: arguments[1],
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data: arguments[2]
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}, this.settings);
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return;
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} else if (arguments.length === 4) {
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this.onLoadFinished = arguments[3];
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this.openUrl(arguments[0], {
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operation: arguments[1],
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data: arguments[2]
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}, this.settings);
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return;
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}
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throw "Wrong use of WebPage#open";
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};
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page.includeJs = function(scriptUrl, onScriptLoaded) {
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// Register temporary signal handler for 'alert()'
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this.javaScriptAlertSent.connect(function(msgFromAlert) {
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if ( msgFromAlert === scriptUrl ) {
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// Resource loaded, time to fire the callback
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onScriptLoaded(scriptUrl);
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// And disconnect the signal handler
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try {
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this.javaScriptAlertSent.disconnect(arguments.callee);
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} catch (e) {}
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}
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});
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// Append the script tag to the body
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this._appendScriptElement(scriptUrl);
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};
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return page;
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};
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// Make "fs.open" throw an exception in case it fails
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window.fs.open = function(path, mode) {
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var file = window.fs._open(path, mode);
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if (file) {
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return file;
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}
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throw "Unable to open file '"+ path +"'";
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};
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