uisupport: Provide helpers for dealing with widget changes
[quassel.git] / src / uisupport / abstractbuffercontainer.cpp
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20
21 #include "abstractbuffercontainer.h"
22 #include "client.h"
23 #include "clientbacklogmanager.h"
24 #include "networkmodel.h"
25
26 AbstractBufferContainer::AbstractBufferContainer(QWidget *parent)
27     : AbstractItemView(parent),
28     _currentBuffer(0)
29 {
30 }
31
32
33 void AbstractBufferContainer::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
34 {
35     Q_ASSERT(model());
36     if (!parent.isValid()) {
37         // ok this means that whole networks are about to be removed
38         // we can't determine which buffers are affect, so we hope that all nets are removed
39         // this is the most common case (for example disconnecting from the core or terminating the client)
40         if (model()->rowCount(parent) != end - start + 1)
41             return;
42
43         foreach(BufferId id, _chatViews.keys()) {
44             removeChatView(id);
45         }
46         _chatViews.clear();
47     }
48     else {
49         // check if there are explicitly buffers removed
50         for (int i = start; i <= end; i++) {
51             QVariant variant = parent.child(i, 0).data(NetworkModel::BufferIdRole);
52             if (!variant.isValid())
53                 continue;
54
55             BufferId bufferId = variant.value<BufferId>();
56             removeBuffer(bufferId);
57         }
58     }
59 }
60
61
62 void AbstractBufferContainer::removeBuffer(BufferId bufferId)
63 {
64     if (!_chatViews.contains(bufferId))
65         return;
66
67     removeChatView(bufferId);
68     _chatViews.take(bufferId);
69 }
70
71
72 /*
73   Switching to first buffer is now handled in MainWin::clientNetworkUpdated()
74
75 void AbstractBufferContainer::rowsInserted(const QModelIndex &parent, int start, int end) {
76   Q_UNUSED(end)
77
78   if(currentBuffer().isValid())
79     return;
80
81   // we want to make sure the very first valid buffer is selected
82   QModelIndex index = model()->index(start, 0, parent);
83   if(index.isValid()) {
84     BufferId id = index.data(NetworkModel::BufferIdRole).value<BufferId>();
85     if(id.isValid())
86       setCurrentBuffer(id);
87   }
88 }
89 */
90
91 void AbstractBufferContainer::currentChanged(const QModelIndex &current, const QModelIndex &previous)
92 {
93     Q_UNUSED(previous)
94
95     BufferId newBufferId = current.data(NetworkModel::BufferIdRole).value<BufferId>();
96     // To be able to reset the selected buffer, we don't check if buffer/index is valid here
97     if (currentBuffer() != newBufferId) {
98         setCurrentBuffer(newBufferId);
99         emit currentChanged(newBufferId);
100         emit currentChanged(current);
101     }
102 }
103
104
105 void AbstractBufferContainer::setCurrentBuffer(BufferId bufferId)
106 {
107     BufferId prevBufferId = currentBuffer();
108     if (prevBufferId.isValid() && _chatViews.contains(prevBufferId)) {
109         MsgId msgId = _chatViews.value(prevBufferId)->lastMsgId();
110         Client::setBufferLastSeenMsg(prevBufferId, msgId);
111     }
112
113     if (!bufferId.isValid()) {
114         _currentBuffer = 0;
115         showChatView(0);
116         return;
117     }
118
119     if (!_chatViews.contains(bufferId))
120         _chatViews[bufferId] = createChatView(bufferId);
121
122     _currentBuffer = bufferId;
123     showChatView(bufferId);
124     Client::networkModel()->clearBufferActivity(bufferId);
125     Client::setBufferLastSeenMsg(bufferId, _chatViews[bufferId]->lastMsgId());
126     Client::backlogManager()->checkForBacklog(bufferId);
127     setFocus();
128 }