1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
let { EventEmitter } = Cu.import("resource:///modules/syncedtabs/EventEmitter.jsm", {});
this.EXPORTED_SYMBOLS = [
"SyncedTabsListStore"
];
/**
* SyncedTabsListStore
*
* Instances of this store encapsulate all of the state associated with a synced tabs list view.
* The state includes the clients, their tabs, the row that is currently selected,
* and the filtered query.
*/
function SyncedTabsListStore(SyncedTabs) {
EventEmitter.call(this);
this._SyncedTabs = SyncedTabs;
this.data = [];
this._closedClients = {};
this._selectedRow = [-1, -1];
this.filter = "";
this.inputFocused = false;
}
Object.assign(SyncedTabsListStore.prototype, EventEmitter.prototype, {
// This internal method triggers the "change" event that views
// listen for. It denormalizes the state so that it's easier for
// the view to deal with. updateType hints to the view what
// actually needs to be rerendered or just updated, and can be
// empty (to (re)render everything), "searchbox" (to rerender just the tab list),
// or "all" (to skip rendering and just update all attributes of existing nodes).
_change(updateType) {
let selectedParent = this._selectedRow[0];
let selectedChild = this._selectedRow[1];
let rowSelected = false;
// clone the data so that consumers can't mutate internal storage
let data = Cu.cloneInto(this.data, {});
let tabCount = 0;
data.forEach((client, index) => {
client.closed = !!this._closedClients[client.id];
if (rowSelected || selectedParent < 0) {
return;
}
if (this.filter) {
if (selectedParent < tabCount + client.tabs.length) {
client.tabs[selectedParent - tabCount].selected = true;
client.tabs[selectedParent - tabCount].focused = !this.inputFocused;
rowSelected = true;
} else {
tabCount += client.tabs.length;
}
return;
}
if (selectedParent === index && selectedChild === -1) {
client.selected = true;
client.focused = !this.inputFocused;
rowSelected = true;
} else if (selectedParent === index) {
client.tabs[selectedChild].selected = true;
client.tabs[selectedChild].focused = !this.inputFocused;
rowSelected = true;
}
});
// If this were React the view would be smart enough
// to not re-render the whole list unless necessary. But it's
// not, so updateType is a hint to the view of what actually
// needs to be rerendered.
this.emit("change", {
clients: data,
canUpdateAll: updateType === "all",
canUpdateInput: updateType === "searchbox",
filter: this.filter,
inputFocused: this.inputFocused
});
},
/**
* Moves the row selection from a child to its parent,
* which occurs when the parent of a selected row closes.
*/
_selectParentRow() {
this._selectedRow[1] = -1;
},
_toggleBranch(id, closed) {
this._closedClients[id] = closed;
if (this._closedClients[id]) {
this._selectParentRow();
}
this._change("all");
},
_isOpen(client) {
return !this._closedClients[client.id];
},
moveSelectionDown() {
let branchRow = this._selectedRow[0];
let childRow = this._selectedRow[1];
let branch = this.data[branchRow];
if (this.filter) {
this.selectRow(branchRow + 1);
return;
}
if (branchRow < 0) {
this.selectRow(0, -1);
} else if ((!branch.tabs.length || childRow >= branch.tabs.length - 1 || !this._isOpen(branch)) && branchRow < this.data.length) {
this.selectRow(branchRow + 1, -1);
} else if (childRow < branch.tabs.length) {
this.selectRow(branchRow, childRow + 1);
}
},
moveSelectionUp() {
let branchRow = this._selectedRow[0];
let childRow = this._selectedRow[1];
if (this.filter) {
this.selectRow(branchRow - 1);
return;
}
if (branchRow < 0) {
this.selectRow(0, -1);
} else if (childRow < 0 && branchRow > 0) {
let prevBranch = this.data[branchRow - 1];
let newChildRow = this._isOpen(prevBranch) ? prevBranch.tabs.length - 1 : -1;
this.selectRow(branchRow - 1, newChildRow);
} else if (childRow >= 0) {
this.selectRow(branchRow, childRow - 1);
}
},
// Selects a row and makes sure the selection is within bounds
selectRow(parent, child) {
let maxParentRow = this.filter ? this._tabCount() : this.data.length;
let parentRow = parent;
if (parent <= -1) {
parentRow = 0;
} else if (parent >= maxParentRow) {
return;
}
let childRow = child;
if (parentRow === -1 || this.filter || typeof child === "undefined" || child < -1) {
childRow = -1;
} else if (child >= this.data[parentRow].tabs.length) {
childRow = this.data[parentRow].tabs.length - 1;
}
if (this._selectedRow[0] === parentRow && this._selectedRow[1] === childRow) {
return;
}
this._selectedRow = [parentRow, childRow];
this.inputFocused = false;
this._change("all");
},
_tabCount() {
return this.data.reduce((prev, curr) => curr.tabs.length + prev, 0);
},
toggleBranch(id) {
this._toggleBranch(id, !this._closedClients[id]);
},
closeBranch(id) {
this._toggleBranch(id, true);
},
openBranch(id) {
this._toggleBranch(id, false);
},
focusInput() {
this.inputFocused = true;
// A change type of "all" updates rather than rebuilds, which is what we
// want here - only the selection/focus has changed.
this._change("all");
},
blurInput() {
this.inputFocused = false;
// A change type of "all" updates rather than rebuilds, which is what we
// want here - only the selection/focus has changed.
this._change("all");
},
clearFilter() {
this.filter = "";
this._selectedRow = [-1, -1];
return this.getData();
},
// Fetches data from the SyncedTabs module and triggers
// and update
getData(filter) {
let updateType;
let hasFilter = typeof filter !== "undefined";
if (hasFilter) {
this.filter = filter;
this._selectedRow = [-1, -1];
// When a filter is specified we tell the view that only the list
// needs to be rerendered so that it doesn't disrupt the input
// field's focus.
updateType = "searchbox";
}
// return promise for tests
return this._SyncedTabs.getTabClients(this.filter)
.then(result => {
if (!hasFilter) {
// Only sort clients and tabs if we're rendering the whole list.
this._SyncedTabs.sortTabClientsByLastUsed(result);
}
this.data = result;
this._change(updateType);
})
.catch(Cu.reportError);
}
});
|
