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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/browser/ui/panels/panel_manager.h" | 5 #include "chrome/browser/ui/panels/panel_manager.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
11 #include "base/message_loop.h" | |
11 #include "chrome/browser/ui/browser.h" | 12 #include "chrome/browser/ui/browser.h" |
12 #include "chrome/browser/ui/window_sizer.h" | 13 #include "chrome/browser/ui/window_sizer.h" |
13 | 14 |
14 namespace { | 15 namespace { |
15 // Invalid panel index. | 16 // Invalid panel index. |
16 const size_t kInvalidPanelIndex = static_cast<size_t>(-1); | 17 const size_t kInvalidPanelIndex = static_cast<size_t>(-1); |
17 | 18 |
18 // Minimum width and height of a panel. | 19 // Minimum width and height of a panel. |
19 const int kPanelMinWidthPixels = 64; | 20 const int kPanelMinWidthPixels = 64; |
20 const int kPanelMinHeightPixels = 24; | 21 const int kPanelMinHeightPixels = 24; |
21 | 22 |
22 // Default width and height of a panel. | 23 // Default width and height of a panel. |
23 const int kPanelDefaultWidthPixels = 240; | 24 const int kPanelDefaultWidthPixels = 240; |
24 const int kPanelDefaultHeightPixels = 290; | 25 const int kPanelDefaultHeightPixels = 290; |
25 | 26 |
26 // Maxmium width and height of a panel based on the factor of the working | 27 // Maxmium width and height of a panel based on the factor of the working |
27 // area. | 28 // area. |
28 const double kPanelMaxWidthFactor = 1.0; | 29 const double kPanelMaxWidthFactor = 1.0; |
29 const double kPanelMaxHeightFactor = 0.5; | 30 const double kPanelMaxHeightFactor = 0.5; |
30 | 31 |
31 // Horizontal spacing between two panels. | 32 // Horizontal spacing between two panels. |
32 const int kPanelsHorizontalSpacing = 4; | 33 const int kPanelsHorizontalSpacing = 4; |
33 | 34 |
35 // The delayed interval to do the check to ensure we bring up or down titlebars. | |
Dmitry Titov
2011/08/22 22:35:53
It seems some explanation has to be here. I think
jianli
2011/08/22 23:28:10
The reason for adding this additional logic is tha
| |
36 const int kDelayedBringUpOrDownTitlebarsCheckMs = 1000; | |
37 | |
34 // Single instance of PanelManager. | 38 // Single instance of PanelManager. |
35 scoped_ptr<PanelManager> panel_instance; | 39 scoped_refptr<PanelManager> panel_instance; |
36 } // namespace | 40 } // namespace |
37 | 41 |
38 // static | 42 // static |
39 PanelManager* PanelManager::GetInstance() { | 43 PanelManager* PanelManager::GetInstance() { |
40 if (!panel_instance.get()) { | 44 if (!panel_instance.get()) { |
41 panel_instance.reset(new PanelManager()); | 45 panel_instance = new PanelManager(); |
46 panel_instance->Init(); | |
42 } | 47 } |
43 return panel_instance.get(); | 48 return panel_instance.get(); |
44 } | 49 } |
45 | 50 |
51 // static | |
52 void PanelManager::CreateForTesting(const gfx::Rect& work_area, | |
53 AutoHideBottomBar* auto_hide_bottom_bar) { | |
54 DCHECK(!panel_instance.get()); | |
55 panel_instance = new PanelManager(); | |
56 panel_instance->auto_hide_bottom_bar_ = auto_hide_bottom_bar; | |
57 panel_instance->SetWorkArea(work_area); | |
58 } | |
59 | |
46 PanelManager::PanelManager() | 60 PanelManager::PanelManager() |
47 : max_width_(0), | 61 : max_width_(0), |
48 max_height_(0), | 62 max_height_(0), |
49 min_x_(0), | |
50 current_x_(0), | 63 current_x_(0), |
51 bottom_edge_y_(0), | |
52 dragging_panel_index_(kInvalidPanelIndex), | 64 dragging_panel_index_(kInvalidPanelIndex), |
53 dragging_panel_original_x_(0) { | 65 dragging_panel_original_x_(0), |
54 OnDisplayChanged(); | 66 delayed_titlebar_action_(NO_ACTION), |
67 ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) { | |
55 } | 68 } |
56 | 69 |
57 PanelManager::~PanelManager() { | 70 PanelManager::~PanelManager() { |
58 DCHECK(panels_.empty()); | 71 DCHECK(panels_.empty()); |
59 DCHECK(panels_pending_to_remove_.empty()); | 72 DCHECK(panels_pending_to_remove_.empty()); |
60 } | 73 } |
61 | 74 |
75 void PanelManager::Init() { | |
76 auto_hide_bottom_bar_ = AutoHideBottomBar::Create(this); | |
77 OnDisplayChanged(); | |
78 } | |
79 | |
62 void PanelManager::OnDisplayChanged() { | 80 void PanelManager::OnDisplayChanged() { |
63 scoped_ptr<WindowSizer::MonitorInfoProvider> info_provider( | 81 scoped_ptr<WindowSizer::MonitorInfoProvider> info_provider( |
64 WindowSizer::CreateDefaultMonitorInfoProvider()); | 82 WindowSizer::CreateDefaultMonitorInfoProvider()); |
65 SetWorkArea(info_provider->GetPrimaryMonitorWorkArea()); | 83 SetWorkArea(info_provider->GetPrimaryMonitorWorkArea()); |
66 } | 84 } |
67 | 85 |
68 void PanelManager::SetWorkArea(const gfx::Rect& work_area) { | 86 void PanelManager::SetWorkArea(const gfx::Rect& work_area) { |
69 if (work_area == work_area_) | 87 if (work_area == work_area_) |
70 return; | 88 return; |
71 work_area_ = work_area; | 89 work_area_ = work_area; |
72 | 90 |
73 min_x_ = work_area.x(); | 91 auto_hide_bottom_bar_->UpdateWorkArea(work_area); |
92 | |
74 current_x_ = work_area.right(); | 93 current_x_ = work_area.right(); |
75 bottom_edge_y_ = work_area.bottom(); | |
76 max_width_ = static_cast<int>(work_area.width() * kPanelMaxWidthFactor); | 94 max_width_ = static_cast<int>(work_area.width() * kPanelMaxWidthFactor); |
77 max_height_ = static_cast<int>(work_area.height() * kPanelMaxHeightFactor); | 95 max_height_ = static_cast<int>(work_area.height() * kPanelMaxHeightFactor); |
78 | 96 |
79 Rearrange(panels_.begin()); | 97 Rearrange(panels_.begin()); |
80 } | 98 } |
81 | 99 |
82 void PanelManager::FindAndClosePanelOnOverflow(const Extension* extension) { | 100 void PanelManager::FindAndClosePanelOnOverflow(const Extension* extension) { |
83 Panel* panel_to_close = NULL; | 101 Panel* panel_to_close = NULL; |
84 | 102 |
85 // Try to find the left-most panel invoked from the same extension and close | 103 // Try to find the left-most panel invoked from the same extension and close |
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264 } else { | 282 } else { |
265 panels_[dragging_panel_index_]->SetPanelBounds( | 283 panels_[dragging_panel_index_]->SetPanelBounds( |
266 dragging_panel_bounds_); | 284 dragging_panel_bounds_); |
267 } | 285 } |
268 | 286 |
269 dragging_panel_index_ = kInvalidPanelIndex; | 287 dragging_panel_index_ = kInvalidPanelIndex; |
270 | 288 |
271 DelayedRemove(); | 289 DelayedRemove(); |
272 } | 290 } |
273 | 291 |
274 bool PanelManager::ShouldBringUpTitlebarForAllMinimizedPanels( | 292 bool PanelManager::ShouldBringUpTitlebars(int mouse_x, int mouse_y) const { |
275 int mouse_x, int mouse_y) const { | 293 // We should always bring up the title-bar if the mouse is over the auto-hide |
294 // task-bar that becomes visible. | |
295 if (auto_hide_bottom_bar_->Exists() && | |
296 auto_hide_bottom_bar_->GetVisibility() == AutoHideBottomBar::VISIBLE && | |
297 mouse_y >= work_area_.bottom() - auto_hide_bottom_bar_->GetHeight()) | |
298 return true; | |
299 | |
276 for (Panels::const_iterator iter = panels_.begin(); | 300 for (Panels::const_iterator iter = panels_.begin(); |
277 iter != panels_.end(); ++iter) { | 301 iter != panels_.end(); ++iter) { |
278 if ((*iter)->ShouldBringUpTitlebar(mouse_x, mouse_y)) | 302 if ((*iter)->ShouldBringUpTitlebar(mouse_x, mouse_y)) |
279 return true; | 303 return true; |
280 } | 304 } |
281 return false; | 305 return false; |
282 } | 306 } |
283 | 307 |
284 void PanelManager::BringUpOrDownTitlebarForAllMinimizedPanels(bool bring_up) { | 308 void PanelManager::BringUpOrDownTitlebars(bool bring_up) { |
309 // If the auto-hide bottom bar exists, delay the action until the bottom | |
310 // bar is fully visible or hidden. We do not want both bottom bar and panel | |
311 // titlebar to move at the same time but with different speeds. | |
312 if (auto_hide_bottom_bar_->Exists()) { | |
313 AutoHideBottomBar::Visibility visibility = | |
314 auto_hide_bottom_bar_->GetVisibility(); | |
315 if (visibility != (bring_up ? AutoHideBottomBar::VISIBLE | |
316 : AutoHideBottomBar::HIDDEN)) { | |
317 // OnAutoHideBottomBarVisibilityChanged will handle this. | |
318 delayed_titlebar_action_ = bring_up ? BRING_UP : BRING_DOWN; | |
319 | |
320 // Sometimes, the bottom bar does not appear or hide promptly. Schedule | |
321 // a delayed task to make sure our delayed action is performed. | |
322 MessageLoop::current()->PostDelayedTask( | |
323 FROM_HERE, | |
324 method_factory_.NewRunnableMethod( | |
325 &PanelManager::DelayedBringUpOrDownTitlebarsCheck), | |
326 kDelayedBringUpOrDownTitlebarsCheckMs); | |
327 | |
328 return; | |
329 } | |
330 } | |
331 | |
332 DoBringUpOrDownTitlebars(bring_up); | |
333 } | |
334 | |
335 void PanelManager::DelayedBringUpOrDownTitlebarsCheck() { | |
336 switch (delayed_titlebar_action_) { | |
337 case NO_ACTION: | |
338 break; | |
339 case BRING_UP: | |
340 delayed_titlebar_action_ = NO_ACTION; | |
341 DoBringUpOrDownTitlebars(true); | |
342 break; | |
343 case BRING_DOWN: | |
344 delayed_titlebar_action_ = NO_ACTION; | |
345 DoBringUpOrDownTitlebars(false); | |
346 break; | |
347 default: | |
348 NOTREACHED(); | |
349 break; | |
350 } | |
351 } | |
352 | |
353 void PanelManager::DoBringUpOrDownTitlebars(bool bring_up) { | |
285 for (Panels::const_iterator iter = panels_.begin(); | 354 for (Panels::const_iterator iter = panels_.begin(); |
286 iter != panels_.end(); ++iter) { | 355 iter != panels_.end(); ++iter) { |
287 Panel* panel = *iter; | 356 Panel* panel = *iter; |
288 | 357 |
289 // Skip any panel that is drawing the attention. | 358 // Skip any panel that is drawing the attention. |
290 if (panel->IsDrawingAttention()) | 359 if (panel->IsDrawingAttention()) |
291 continue; | 360 continue; |
292 | 361 |
293 if (bring_up) { | 362 if (bring_up) { |
294 if (panel->expansion_state() == Panel::MINIMIZED) | 363 if (panel->expansion_state() == Panel::MINIMIZED) |
295 panel->SetExpansionState(Panel::TITLE_ONLY); | 364 panel->SetExpansionState(Panel::TITLE_ONLY); |
296 } else { | 365 } else { |
297 if (panel->expansion_state() == Panel::TITLE_ONLY) | 366 if (panel->expansion_state() == Panel::TITLE_ONLY) |
298 panel->SetExpansionState(Panel::MINIMIZED); | 367 panel->SetExpansionState(Panel::MINIMIZED); |
299 } | 368 } |
300 } | 369 } |
301 } | 370 } |
302 | 371 |
372 int PanelManager::GetBottomPositionForExpansionState( | |
373 Panel::ExpansionState expansion_state) const { | |
374 int bottom = work_area_.bottom(); | |
375 if (expansion_state != Panel::MINIMIZED) | |
376 bottom -= auto_hide_bottom_bar_->GetHeight(); | |
377 return bottom; | |
378 } | |
379 | |
380 void PanelManager::OnAutoHideBottomBarVisibilityChanged( | |
381 AutoHideBottomBar::Visibility visibility) { | |
382 switch (delayed_titlebar_action_) { | |
383 case NO_ACTION: | |
384 break; | |
385 case BRING_UP: | |
386 if (visibility == AutoHideBottomBar::VISIBLE) { | |
387 delayed_titlebar_action_ = NO_ACTION; | |
388 DoBringUpOrDownTitlebars(true); | |
389 } | |
390 break; | |
391 case BRING_DOWN: | |
392 if (visibility == AutoHideBottomBar::HIDDEN) { | |
393 delayed_titlebar_action_ = NO_ACTION; | |
394 DoBringUpOrDownTitlebars(false); | |
395 } | |
396 break; | |
397 default: | |
398 NOTREACHED(); | |
399 break; | |
400 } | |
401 } | |
402 | |
403 void PanelManager::OnAutoHideBottomBarHeightChanged(int height) { | |
404 current_x_ = work_area_.right(); | |
405 Rearrange(panels_.begin()); | |
406 } | |
407 | |
303 void PanelManager::Rearrange(Panels::iterator iter_to_start) { | 408 void PanelManager::Rearrange(Panels::iterator iter_to_start) { |
304 if (iter_to_start == panels_.end()) | 409 if (iter_to_start == panels_.end()) |
305 return; | 410 return; |
306 | 411 |
307 for (Panels::iterator iter = iter_to_start; iter != panels_.end(); ++iter) { | 412 for (Panels::iterator iter = iter_to_start; iter != panels_.end(); ++iter) { |
308 gfx::Rect new_bounds((*iter)->GetBounds()); | 413 gfx::Rect new_bounds((*iter)->GetBounds()); |
309 ComputeBoundsForNextPanel(&new_bounds, false); | 414 ComputeBoundsForNextPanel(&new_bounds, false); |
310 if (new_bounds != (*iter)->GetBounds()) | 415 if (new_bounds != (*iter)->GetBounds()) |
311 (*iter)->SetPanelBounds(new_bounds); | 416 (*iter)->SetPanelBounds(new_bounds); |
312 } | 417 } |
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329 else if (width > max_width_) | 434 else if (width > max_width_) |
330 width = max_width_; | 435 width = max_width_; |
331 | 436 |
332 if (height < kPanelMinHeightPixels) | 437 if (height < kPanelMinHeightPixels) |
333 height = kPanelMinHeightPixels; | 438 height = kPanelMinHeightPixels; |
334 else if (height > max_height_) | 439 else if (height > max_height_) |
335 height = max_height_; | 440 height = max_height_; |
336 } | 441 } |
337 | 442 |
338 int x = current_x_ - width; | 443 int x = current_x_ - width; |
339 int y = bottom_edge_y_ - height; | 444 int y = work_area_.bottom() - auto_hide_bottom_bar_->GetHeight() - height; |
340 | 445 |
341 if (x < min_x_) | 446 if (x < work_area_.x()) |
342 return false; | 447 return false; |
343 | 448 |
344 current_x_ -= width + kPanelsHorizontalSpacing; | 449 current_x_ -= width + kPanelsHorizontalSpacing; |
345 | 450 |
346 bounds->SetRect(x, y, width, height); | 451 bounds->SetRect(x, y, width, height); |
347 return true; | 452 return true; |
348 } | 453 } |
349 | 454 |
350 void PanelManager::RemoveAll() { | 455 void PanelManager::RemoveAll() { |
351 // This should not be called when we're in the process of dragging. | 456 // This should not be called when we're in the process of dragging. |
352 DCHECK(dragging_panel_index_ == kInvalidPanelIndex); | 457 DCHECK(dragging_panel_index_ == kInvalidPanelIndex); |
353 | 458 |
354 // Start from the bottom to avoid reshuffling. | 459 // Start from the bottom to avoid reshuffling. |
355 for (Panels::reverse_iterator iter = panels_.rbegin(); | 460 for (Panels::reverse_iterator iter = panels_.rbegin(); |
356 iter != panels_.rend(); ++iter) | 461 iter != panels_.rend(); ++iter) |
357 (*iter)->Close(); | 462 (*iter)->Close(); |
358 } | 463 } |
359 | 464 |
360 bool PanelManager::is_dragging_panel() const { | 465 bool PanelManager::is_dragging_panel() const { |
361 return dragging_panel_index_ != kInvalidPanelIndex; | 466 return dragging_panel_index_ != kInvalidPanelIndex; |
362 } | 467 } |
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