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372 lines
12 KiB
JavaScript
372 lines
12 KiB
JavaScript
var inject = function () {
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document.head.appendChild((function () {
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// Helpers
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// =======
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// Based on cycle.js
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// 2011-08-24
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// https://github.com/douglascrockford/JSON-js/blob/master/cycle.js
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// Make a deep copy of an object or array, assuring that there is at most
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// one instance of each object or array in the resulting structure. The
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// duplicate references (which might be forming cycles) are replaced with
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// an object of the form
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// {$ref: PATH}
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// where the PATH is a JSONPath string that locates the first occurance.
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var decycle = function (object) {
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var objects = [], // Keep a reference to each unique object or array
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paths = []; // Keep the path to each unique object or array
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return (function derez(value, path) {
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var i, // The loop counter
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name, // Property name
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nu; // The new object or array
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switch (typeof value) {
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case 'object':
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if (!value) {
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return null;
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}
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for (i = 0; i < objects.length; i += 1) {
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if (objects[i] === value) {
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return {$ref: paths[i]};
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}
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}
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objects.push(value);
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paths.push(path);
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if (Object.prototype.toString.apply(value) === '[object Array]') {
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nu = [];
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for (i = 0; i < value.length; i += 1) {
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nu[i] = derez(value[i], path + '[' + i + ']');
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}
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} else {
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nu = {};
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for (name in value) {
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if (Object.prototype.hasOwnProperty.call(value, name)) {
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nu[name] = derez(value[name],
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path + '[' + JSON.stringify(name) + ']');
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}
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}
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}
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return nu;
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case 'number':
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case 'string':
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case 'boolean':
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return value;
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}
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}(object, '$'));
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};
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// End
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// ===
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var fn = function bootstrap (window) {
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var angular = window.angular;
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// Helper to determine if the root 'ng' module has been loaded
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// window.angular may be available if the app is bootstrapped asynchronously, but 'ng' might
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// finish loading later.
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var ngLoaded = function () {
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if (!window.angular) {
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return false;
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}
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try {
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window.angular.module('ng');
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}
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catch (e) {
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return false;
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}
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return true;
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};
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if (!ngLoaded()) {
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(function () {
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// TODO: var name
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var areWeThereYet = function (ev) {
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if (ev.srcElement.tagName === 'SCRIPT') {
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var oldOnload = ev.srcElement.onload;
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ev.srcElement.onload = function () {
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if (ngLoaded()) {
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document.removeEventListener('DOMNodeInserted', areWeThereYet);
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bootstrap(window);
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}
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if (oldOnload) {
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oldOnload.apply(this, arguments);
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}
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};
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}
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};
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document.addEventListener('DOMNodeInserted', areWeThereYet);
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}());
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return;
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}
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// do not patch twice
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if (window.__ngDebug) {
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return;
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}
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// Instrumentation
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// ---------------
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//var bootstrap = window.angular.bootstrap;
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var debug = window.__ngDebug = {
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watchers: {}, // map of scopes --> watchers
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watchPerf: {}, // maps of watch/apply exp/fns to perf data
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applyPerf: {},
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scopes: {}, // map of scope.$ids --> scope objects
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rootScopes: {}, // map of $ids --> refs to root scopes
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deps: []
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};
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var getScopeLocals = function (scope) {
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var scopeLocals = {}, prop;
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for (prop in scope) {
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if (scope.hasOwnProperty(prop) && prop !== 'this' && prop[0] !== '$') {
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scopeLocals[prop] = scope[prop];
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}
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}
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return scopeLocals;
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};
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var annotate = angular.injector().annotate;
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// not all versions of AngularJS expose annotate
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if (!annotate) {
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annotate = (function () {
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var FN_ARGS = /^function\s*[^\(]*\(\s*([^\)]*)\)/m;
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var FN_ARG_SPLIT = /,/;
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var FN_ARG = /^\s*(_?)(.+?)\1\s*$/;
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var STRIP_COMMENTS = /((\/\/.*$)|(\/\*[\s\S]*?\*\/))/mg;
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// TODO: should I keep these assertions?
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function assertArg(arg, name, reason) {
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if (!arg) {
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throw new Error("Argument '" + (name || '?') + "' is " + (reason || "required"));
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}
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return arg;
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}
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function assertArgFn(arg, name, acceptArrayAnnotation) {
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if (acceptArrayAnnotation && angular.isArray(arg)) {
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arg = arg[arg.length - 1];
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}
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assertArg(angular.isFunction(arg), name, 'not a function, got ' +
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(arg && typeof arg == 'object' ? arg.constructor.name || 'Object' : typeof arg));
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return arg;
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}
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return function (fn) {
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var $inject,
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fnText,
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argDecl,
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last;
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if (typeof fn == 'function') {
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if (!($inject = fn.$inject)) {
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$inject = [];
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fnText = fn.toString().replace(STRIP_COMMENTS, '');
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argDecl = fnText.match(FN_ARGS);
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argDecl[1].split(FN_ARG_SPLIT).forEach(function(arg) {
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arg.replace(FN_ARG, function(all, underscore, name) {
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$inject.push(name);
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});
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});
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fn.$inject = $inject;
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}
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} else if (angular.isArray(fn)) {
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last = fn.length - 1;
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assertArgFn(fn[last], 'fn')
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$inject = fn.slice(0, last);
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} else {
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assertArgFn(fn, 'fn', true);
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}
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return $inject;
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};
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}());
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}
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var ng = angular.module('ng');
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ng.config(function ($provide) {
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// methods to patch
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[
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'provider',
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'factory',
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'service'
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].forEach(function (met) {
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var temp = $provide[met];
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$provide[met] = function (thingName, definition) {
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debug.deps.push({
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name: thingName,
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imports: annotate(definition)
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});
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return temp.apply(this, arguments);
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};
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});
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$provide.decorator('$rootScope', function ($delegate) {
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var watchFnToHumanReadableString = function (fn) {
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if (fn.exp) {
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return fn.exp.trim();
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} else if (fn.name) {
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return fn.name.trim();
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} else {
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return fn.toString();
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}
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};
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var applyFnToLogString = function (fn) {
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var str;
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if (fn) {
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if (fn.name) {
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str = fn.name;
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} else if (fn.toString().split('\n').length > 1) {
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str = 'fn () { ' + fn.toString().split('\n')[1].trim() + ' /* ... */ }';
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} else {
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str = fn.toString().trim().substr(0, 30) + '...';
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}
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} else {
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str = '$apply';
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}
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return str;
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};
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// patch registering watchers
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// ==========================
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var _watch = $delegate.__proto__.$watch;
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$delegate.__proto__.$watch = function(watchExpression, applyFunction) {
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var thatScope = this;
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var watchStr = watchFnToHumanReadableString(watchExpression);
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if (!debug.watchPerf[watchStr]) {
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debug.watchPerf[watchStr] = {
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time: 0,
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calls: 0
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};
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}
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// patch watchExpression
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// ---------------------
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var w = watchExpression;
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if (typeof w === 'function') {
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watchExpression = function () {
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var start = window.performance.webkitNow();
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var ret = w.apply(this, arguments);
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var end = window.performance.webkitNow();
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debug.watchPerf[watchStr].time += (end - start);
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debug.watchPerf[watchStr].calls += 1;
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return ret;
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};
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} else {
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watchExpression = function () {
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var start = window.performance.webkitNow();
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var ret = thatScope.$eval(w);
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var end = window.performance.webkitNow();
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debug.watchPerf[watchStr].time += (end - start);
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debug.watchPerf[watchStr].calls += 1;
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return ret;
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};
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}
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// patch applyFunction
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// -------------------
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if (typeof applyFunction === 'function') {
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var applyStr = applyFunction.toString();
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var unpatchedApplyFunction = applyFunction;
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applyFunction = function () {
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var start = window.performance.webkitNow();
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var ret = unpatchedApplyFunction.apply(this, arguments);
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var end = window.performance.webkitNow();
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debug.scopes[thatScope.$id] = getScopeLocals(thatScope)
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//TODO: move these checks out of here and into registering the watcher
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if (!debug.applyPerf[applyStr]) {
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debug.applyPerf[applyStr] = {
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time: 0,
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calls: 0
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};
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}
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debug.applyPerf[applyStr].time += (end - start);
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debug.applyPerf[applyStr].calls += (end - start);
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return ret;
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};
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}
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return _watch.apply(this, arguments);
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};
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// patch destroy
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// -------------
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var _destroy = $delegate.__proto__.$destroy;
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$delegate.__proto__.$destroy = function () {
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if (debug.watchers[this.$id]) {
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delete debug.watchers[this.$id];
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delete debug.scopes[this.$id];
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}
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return _destroy.apply(this, arguments);
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};
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var _new = $delegate.__proto__.$new;
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$delegate.__proto__.$new = function () {
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var ret = _new.apply(this, arguments);
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if (ret.$root) {
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debug.rootScopes[ret.$root.$id] = ret.$root;
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}
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// create empty watchers array for this scope
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if (!debug.watchers[ret.$id]) {
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debug.watchers[ret.$id] = [];
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}
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return ret;
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};
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// patch apply
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// -----------
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var _apply = $delegate.__proto__.$apply;
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$delegate.__proto__.$apply = function (fn) {
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var start = window.performance.webkitNow();
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var ret = _apply.apply(this, arguments);
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var end = window.performance.webkitNow();
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// If the debugging option is enabled, log to console
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// --------------------------------------------------
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if (debug.log) {
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console.log(applyFnToLogString(fn) + '\t\t' + (end - start).toPrecision(4) + 'ms');
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}
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return ret;
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};
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return $delegate;
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});
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});
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};
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// Return a script element with the above code embedded in it
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var script = window.document.createElement('script');
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script.innerHTML = '(' + fn.toString() + '(window))';
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return script;
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}()));
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};
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// only inject if cookie is set
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if (document.cookie.indexOf('__ngDebug=true') != -1) {
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document.addEventListener('DOMContentLoaded', inject);
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}
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