1 | /** |
---|
2 | * Copyright (c) 2008-2010 The Open Source Geospatial Foundation |
---|
3 | * |
---|
4 | * Published under the BSD license. |
---|
5 | * See http://svn.geoext.org/core/trunk/geoext/license.txt for the full text |
---|
6 | * of the license. |
---|
7 | */ |
---|
8 | Ext.namespace("GeoExt.plugins"); |
---|
9 | |
---|
10 | /** api: (define) |
---|
11 | * module = GeoExt.plugins |
---|
12 | * class = PrintPageField |
---|
13 | * base_link = `Ext.util.Observable <http://dev.sencha.com/deploy/dev/docs/?class=Ext.util.Observable>`_ |
---|
14 | */ |
---|
15 | |
---|
16 | /** api: example |
---|
17 | * A form with a combo box for the scale and text fields for rotation and a |
---|
18 | * page title. The page title is a custom parameter of the print module's |
---|
19 | * page configuration: |
---|
20 | * |
---|
21 | * .. code-block:: javascript |
---|
22 | * |
---|
23 | * var printPage = new GeoExt.data.PrintPage({ |
---|
24 | * printProvider: new GeoExt.data.PrintProvider({ |
---|
25 | * capabilities: printCapabilities |
---|
26 | * }) |
---|
27 | * }); |
---|
28 | * new Ext.form.FormPanel({ |
---|
29 | * renderTo: "form", |
---|
30 | * width: 200, |
---|
31 | * height: 300, |
---|
32 | * items: [{ |
---|
33 | * xtype: "combo", |
---|
34 | * displayField: "name", |
---|
35 | * store: printPage.scales, // printPage.scale |
---|
36 | * name: "scale", |
---|
37 | * fieldLabel: "Scale", |
---|
38 | * typeAhead: true, |
---|
39 | * mode: "local", |
---|
40 | * forceSelection: true, |
---|
41 | * triggerAction: "all", |
---|
42 | * selectOnFocus: true, |
---|
43 | * plugins: new GeoExt.plugins.PrintPageField({ |
---|
44 | * printPage: printPage |
---|
45 | * }) |
---|
46 | * }, { |
---|
47 | * xtype: "textfield", |
---|
48 | * name: "rotation", // printPage.rotation |
---|
49 | * fieldLabel: "Rotation", |
---|
50 | * plugins: new GeoExt.plugins.PrintPageField({ |
---|
51 | * printPage: printPage |
---|
52 | * }) |
---|
53 | * }, { |
---|
54 | * xtype: "textfield", |
---|
55 | * name: "mapTitle", // printPage.customParams["mapTitle"] |
---|
56 | * fieldLabel: "Map Title", |
---|
57 | * plugins: new GeoExt.plugins.PrintPageField({ |
---|
58 | * printPage: printPage |
---|
59 | * }) |
---|
60 | * }] |
---|
61 | * }); |
---|
62 | */ |
---|
63 | |
---|
64 | /** api: constructor |
---|
65 | * .. class:: PrintPageField |
---|
66 | * |
---|
67 | * A plugin for ``Ext.form.Field`` components which provides synchronization |
---|
68 | * with a :class:`GeoExt.data.PrintPage`. The field name has to match the |
---|
69 | * respective property of the printPage (e.g. ``scale``, ``rotation``). |
---|
70 | */ |
---|
71 | GeoExt.plugins.PrintPageField = Ext.extend(Ext.util.Observable, { |
---|
72 | |
---|
73 | /** api: config[printPage] |
---|
74 | * ``GeoExt.data.PrintPage`` The print page to synchronize with. |
---|
75 | */ |
---|
76 | |
---|
77 | /** private: property[printPage] |
---|
78 | * ``GeoExt.data.PrintPage`` The print page to synchronize with. |
---|
79 | * Read-only. |
---|
80 | */ |
---|
81 | printPage: null, |
---|
82 | |
---|
83 | /** private: property[target] |
---|
84 | * ``Ext.form.Field`` This plugin's target field. |
---|
85 | */ |
---|
86 | target: null, |
---|
87 | |
---|
88 | /** private: method[constructor] |
---|
89 | */ |
---|
90 | constructor: function(config) { |
---|
91 | this.initialConfig = config; |
---|
92 | Ext.apply(this, config); |
---|
93 | |
---|
94 | GeoExt.plugins.PrintPageField.superclass.constructor.apply(this, arguments); |
---|
95 | }, |
---|
96 | |
---|
97 | /** private: method[init] |
---|
98 | * :param target: ``Ext.form.Field`` The component that this plugin |
---|
99 | * extends. |
---|
100 | * @param {Object} target |
---|
101 | */ |
---|
102 | init: function(target) { |
---|
103 | this.target = target; |
---|
104 | var onCfg = { |
---|
105 | "beforedestroy": this.onBeforeDestroy, |
---|
106 | scope: this |
---|
107 | }; |
---|
108 | var eventName = target instanceof Ext.form.ComboBox ? |
---|
109 | "select" : target instanceof Ext.form.Checkbox ? |
---|
110 | "check" : "valid"; |
---|
111 | onCfg[eventName] = this.onFieldChange; |
---|
112 | target.on(onCfg); |
---|
113 | this.printPage.on({ |
---|
114 | "change": this.onPageChange, |
---|
115 | scope: this |
---|
116 | }); |
---|
117 | this.printPage.printProvider.on({ |
---|
118 | "layoutchange": this.onLayoutChange, |
---|
119 | scope: this |
---|
120 | }); |
---|
121 | this.setValue(this.printPage); |
---|
122 | }, |
---|
123 | |
---|
124 | /** private: method[onFieldChange] |
---|
125 | * :param field: ``Ext.form.Field`` |
---|
126 | * :param record: ``Ext.data.Record`` Optional. |
---|
127 | * |
---|
128 | * Handler for the target field's "valid" or "select" event. |
---|
129 | */ |
---|
130 | onFieldChange: function(field, record) { |
---|
131 | var printProvider = this.printPage.printProvider; |
---|
132 | var value = field.getValue(); |
---|
133 | this._updating = true; |
---|
134 | if(field.store === printProvider.scales || field.name === "scale") { |
---|
135 | this.printPage.setScale(record); |
---|
136 | } else if(field.name == "rotation") { |
---|
137 | !isNaN(value) && this.printPage.setRotation(value); |
---|
138 | } else { |
---|
139 | this.printPage.customParams[field.name] = value; |
---|
140 | } |
---|
141 | delete this._updating; |
---|
142 | }, |
---|
143 | |
---|
144 | /** private: method[onPageChange] |
---|
145 | * :param printPage: :class:`GeoExt.data.PrintPage` |
---|
146 | * |
---|
147 | * Handler for the "change" event for the page this plugin is configured |
---|
148 | * with. |
---|
149 | */ |
---|
150 | onPageChange: function(printPage) { |
---|
151 | if(!this._updating) { |
---|
152 | this.setValue(printPage); |
---|
153 | } |
---|
154 | }, |
---|
155 | |
---|
156 | /** private: method[onPageChange] |
---|
157 | * :param printProvider: :class:`GeoExt.data.PrintProvider` |
---|
158 | * :param layout: ``Ext.Record`` |
---|
159 | * |
---|
160 | * Handler for the "layoutchange" event of the printProvider. |
---|
161 | */ |
---|
162 | onLayoutChange: function(printProvider, layout) { |
---|
163 | var t = this.target; |
---|
164 | t.name == "rotation" && t.setDisabled(!layout.get("rotation")); |
---|
165 | }, |
---|
166 | |
---|
167 | /** private: method[setValue] |
---|
168 | * :param printPage: :class:`GeoExt.data.PrintPage` |
---|
169 | * |
---|
170 | * Sets the value in the target field. |
---|
171 | */ |
---|
172 | setValue: function(printPage) { |
---|
173 | var t = this.target; |
---|
174 | t.suspendEvents(); |
---|
175 | if(t.store === printPage.printProvider.scales || t.name === "scale") { |
---|
176 | if(printPage.scale) { |
---|
177 | t.setValue(printPage.scale.get(t.displayField)); |
---|
178 | } |
---|
179 | } else if(t.name == "rotation") { |
---|
180 | t.setValue(printPage.rotation); |
---|
181 | } |
---|
182 | t.resumeEvents(); |
---|
183 | }, |
---|
184 | |
---|
185 | /** private: method[onBeforeDestroy] |
---|
186 | */ |
---|
187 | onBeforeDestroy: function() { |
---|
188 | this.target.un("beforedestroy", this.onBeforeDestroy, this); |
---|
189 | this.target.un("select", this.onFieldChange, this); |
---|
190 | this.target.un("valid", this.onFieldChange, this); |
---|
191 | this.printPage.un("change", this.onPageChange, this); |
---|
192 | this.printPage.printProvider.un("layoutchange", this.onLayoutChange, |
---|
193 | this); |
---|
194 | } |
---|
195 | |
---|
196 | }); |
---|
197 | |
---|
198 | /** api: ptype = gx_printpagefield */ |
---|
199 | Ext.preg("gx_printpagefield", GeoExt.plugins.PrintPageField); |
---|