src/kits/tracker/DesktopPoseView.cpp

   1 /*
   2 Open Tracker License
   3
   4 Terms and Conditions
   5
   6 Copyright (c) 1991-2000, Be Incorporated. All rights reserved.
   7
   8 Permission is hereby granted, free of charge, to any person obtaining a copy of
   9 this software and associated documentation files (the "Software"), to deal in
  10 the Software without restriction, including without limitation the rights to
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  12 of the Software, and to permit persons to whom the Software is furnished to do
  13 so, subject to the following conditions:
  14
  15 The above copyright notice and this permission notice applies to all licensees
  16 and shall be included in all copies or substantial portions of the Software.
  17
  18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF TITLE, MERCHANTABILITY,
  20 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21 BE INCORPORATED BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF, OR IN CONNECTION
  23 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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  25 Except as contained in this notice, the name of Be Incorporated shall not be
  26 used in advertising or otherwise to promote the sale, use or other dealings in
  27 this Software without prior written authorization from Be Incorporated.
  28
  29 Tracker(TM), Be(R), BeOS(R), and BeIA(TM) are trademarks or registered trademarks
  30 of Be Incorporated in the United States and other countries. Other brand product
  31 names are registered trademarks or trademarks of their respective holders.
  32 All rights reserved.
  33 */
  34
  35 // DesktopPoseView adds support for displaying integrated desktops
  36 // from multiple volumes to BPoseView
  37 //
  38 // Used by the Desktop window and by the root view in file panels
  39
  40
  41 #include "DesktopPoseView.h"
  42
  43 #include <NodeMonitor.h>
  44 #include <Path.h>
  45 #include <Volume.h>
  46 #include <VolumeRoster.h>
  47
  48 #include "Commands.h"
  49 #include "FSUtils.h"
  50 #include "PoseList.h"
  51 #include "Tracker.h"
  52 #include "TrackerSettings.h"
  53 #include "TrackerString.h"
  54
  55
  56 //      #pragma mark - DesktopPoseView
  57
  58
  59 DesktopPoseView::DesktopPoseView(Model* model, uint32 viewMode)
  60         :
  61         BPoseView(model, viewMode)
  62 {
  63         SetFlags(Flags() | B_DRAW_ON_CHILDREN);
  64 }
  65
  66
  67 EntryListBase*
  68 DesktopPoseView::InitDesktopDirentIterator(BPoseView* nodeMonitoringTarget,
  69         const entry_ref* ref)
  70 {
  71         // the desktop dirent iterator knows how to iterate over all the volumes,
  72         // integrated onto the desktop
  73
  74         Model sourceModel(ref, false, true);
  75         if (sourceModel.InitCheck() != B_OK)
  76                 return NULL;
  77
  78         CachedEntryIteratorList* result = new CachedEntryIteratorList();
  79
  80         ASSERT(!sourceModel.IsQuery());
  81         ASSERT(!sourceModel.IsVirtualDirectory());
  82         ASSERT(sourceModel.Node() != NULL);
  83
  84         BDirectory* sourceDirectory = dynamic_cast<BDirectory*>(sourceModel.Node());
  85         ThrowOnAssert(sourceDirectory != NULL);
  86
  87         // build an iterator list, start with boot
  88         EntryListBase* perDesktopIterator
  89                 = new CachedDirectoryEntryList(*sourceDirectory);
  90
  91         result->AddItem(perDesktopIterator);
  92         if (nodeMonitoringTarget != NULL) {
  93                 TTracker::WatchNode(sourceModel.NodeRef(),
  94                         B_WATCH_DIRECTORY | B_WATCH_NAME | B_WATCH_STAT | B_WATCH_ATTR,
  95                         nodeMonitoringTarget);
  96         }
  97
  98         if (result->Rewind() != B_OK) {
  99                 delete result;
 100                 if (nodeMonitoringTarget != NULL)
 101                         nodeMonitoringTarget->HideBarberPole();
 102
 103                 return NULL;
 104         }
 105
 106         return result;
 107 }
 108
 109
 110 EntryListBase*
 111 DesktopPoseView::InitDirentIterator(const entry_ref* ref)
 112 {
 113         return InitDesktopDirentIterator(this, ref);
 114 }
 115
 116
 117 bool
 118 DesktopPoseView::FSNotification(const BMessage* message)
 119 {
 120         switch (message->FindInt32("opcode")) {
 121                 case B_DEVICE_MOUNTED:
 122                 {
 123                         dev_t device;
 124                         if (message->FindInt32("new device", &device) != B_OK)
 125                                 break;
 126
 127                         ASSERT(TargetModel());
 128                         TrackerSettings settings;
 129
 130                         BVolume volume(device);
 131                         if (volume.InitCheck() != B_OK)
 132                                 break;
 133
 134                         if (settings.MountVolumesOntoDesktop()
 135                                 && (!volume.IsShared()
 136                                         || settings.MountSharedVolumesOntoDesktop())) {
 137                                 // place an icon for the volume onto the desktop
 138                                 CreateVolumePose(&volume, true);
 139                         }
 140                 }
 141                 break;
 142         }
 143
 144         return _inherited::FSNotification(message);
 145 }
 146
 147
 148 bool
 149 DesktopPoseView::AddPosesThreadValid(const entry_ref*) const
 150 {
 151         return true;
 152 }
 153
 154
 155 void
 156 DesktopPoseView::AddPosesCompleted()
 157 {
 158         _inherited::AddPosesCompleted();
 159         CreateTrashPose();
 160 }
 161
 162
 163 bool
 164 DesktopPoseView::Represents(const node_ref* ref) const
 165 {
 166         // When the Tracker is set up to integrate non-boot beos volumes,
 167         // it represents the home/Desktop folders of all beos volumes
 168
 169         return _inherited::Represents(ref);
 170 }
 171
 172
 173 bool
 174 DesktopPoseView::Represents(const entry_ref* ref) const
 175 {
 176         BEntry entry(ref);
 177         node_ref nref;
 178         entry.GetNodeRef(&nref);
 179         return Represents(&nref);
 180 }
 181
 182
 183 void
 184 DesktopPoseView::ShowVolumes(bool visible, bool showShared)
 185 {
 186         if (LockLooper()) {
 187                 SavePoseLocations();
 188                 if (!visible)
 189                         RemoveRootPoses();
 190                 else
 191                         AddRootPoses(true, showShared);
 192
 193                 UnlockLooper();
 194         }
 195 }
 196
 197
 198 void
 199 DesktopPoseView::StartSettingsWatch()
 200 {
 201         if (be_app->LockLooper()) {
 202                 be_app->StartWatching(this, kShowDisksIconChanged);
 203                 be_app->StartWatching(this, kVolumesOnDesktopChanged);
 204                 be_app->StartWatching(this, kDesktopIntegrationChanged);
 205                 be_app->UnlockLooper();
 206         }
 207 }
 208
 209
 210 void
 211 DesktopPoseView::StopSettingsWatch()
 212 {
 213         if (be_app->LockLooper()) {
 214                 be_app->StopWatching(this, kShowDisksIconChanged);
 215                 be_app->StopWatching(this, kVolumesOnDesktopChanged);
 216                 be_app->StopWatching(this, kDesktopIntegrationChanged);
 217                 be_app->UnlockLooper();
 218         }
 219 }
 220
 221
 222 void
 223 DesktopPoseView::AdaptToVolumeChange(BMessage* message)
 224 {
 225         TTracker* tracker = dynamic_cast<TTracker*>(be_app);
 226         ThrowOnAssert(tracker != NULL);
 227
 228         bool showDisksIcon = false;
 229         bool mountVolumesOnDesktop = true;
 230         bool mountSharedVolumesOntoDesktop = false;
 231
 232         message->FindBool("ShowDisksIcon", &showDisksIcon);
 233         message->FindBool("MountVolumesOntoDesktop", &mountVolumesOnDesktop);
 234         message->FindBool("MountSharedVolumesOntoDesktop",
 235                 &mountSharedVolumesOntoDesktop);
 236
 237         BEntry entry("/");
 238         Model model(&entry);
 239         if (model.InitCheck() == B_OK) {
 240                 BMessage entryMessage;
 241                 entryMessage.what = B_NODE_MONITOR;
 242
 243                 if (showDisksIcon)
 244                         entryMessage.AddInt32("opcode", B_ENTRY_CREATED);
 245                 else {
 246                         entryMessage.AddInt32("opcode", B_ENTRY_REMOVED);
 247                         entry_ref ref;
 248                         if (entry.GetRef(&ref) == B_OK) {
 249                                 BContainerWindow* disksWindow
 250                                         = tracker->FindContainerWindow(&ref);
 251                                 if (disksWindow != NULL) {
 252                                         disksWindow->Lock();
 253                                         disksWindow->Close();
 254                                 }
 255                         }
 256                 }
 257                 entryMessage.AddInt32("device", model.NodeRef()->device);
 258                 entryMessage.AddInt64("node", model.NodeRef()->node);
 259                 entryMessage.AddInt64("directory", model.EntryRef()->directory);
 260                 entryMessage.AddString("name", model.EntryRef()->name);
 261                 BContainerWindow* deskWindow
 262                         = dynamic_cast<BContainerWindow*>(Window());
 263                 if (deskWindow != NULL)
 264                         deskWindow->PostMessage(&entryMessage, deskWindow->PoseView());
 265         }
 266
 267         ShowVolumes(mountVolumesOnDesktop, mountSharedVolumesOntoDesktop);
 268 }
 269
 270
 271 void
 272 DesktopPoseView::AdaptToDesktopIntegrationChange(BMessage* message)
 273 {
 274         bool mountVolumesOnDesktop = true;
 275         bool mountSharedVolumesOntoDesktop = true;
 276
 277         message->FindBool("MountVolumesOntoDesktop", &mountVolumesOnDesktop);
 278         message->FindBool("MountSharedVolumesOntoDesktop",
 279                 &mountSharedVolumesOntoDesktop);
 280
 281         ShowVolumes(false, mountSharedVolumesOntoDesktop);
 282         ShowVolumes(mountVolumesOnDesktop, mountSharedVolumesOntoDesktop);
 283 }