try to keep the first unread post in view while loading

1 files changed, 37 insertions, 0 deletions

diff --git a/qml/TopicPage.qml b/qml/TopicPage.qml
index 32a86ec..8ff7127 100644
--- a/qml/TopicPage.qml
+++ b/qml/TopicPage.qml
@@ -12,6 +12,9 @@ Page {
 	property Board board;
 	property int topicId;
 
+	/** -1: Do not keep view; -2: Keep view on last post; >0: Keep view on a post. */
+	property int _keepView: -1;
+
 	tools: ToolBarLayout {
 		ToolIcon {
 			platformIconId: "toolbar-back"
@@ -42,9 +45,28 @@ Page {
 		}
 		ToolIcon {
 			platformIconId: "toolbar-view-menu"
+			onClicked: (topicMenu.status === DialogStatus.Closed) ? topicMenu.open() : topicMenu.close()
 		}
 	}
 
+	Menu {
+		id: topicMenu
+		MenuLayout {
+			MenuItem {
+				text: qsTr("Go to first post");
+				onClicked: postsView.positionViewAtIndex(0, ListView.Beginning);
+			}
+			MenuItem {
+				text: qsTr("Go to last post")
+				onClicked: {
+					_keepView = -2; // Keep on last post
+					postsView.positionViewAtEnd();
+				}
+			}
+		}
+
+	}
+
 	ListView {
 		id: postsView
 		anchors.fill: parent
@@ -56,6 +78,7 @@ Page {
 			onFirstUnreadPostChanged: {
 				postsView.positionViewAtIndex(firstUnreadPost, ListView.Beginning);
 				topicModel.markAsRead();
+				_keepView = firstUnreadPost;
 			}
 		}
 		section.property: "humanDate"
@@ -164,6 +187,20 @@ Page {
 		}
 	}
 
+	Connections {
+		target: _keepView !== -1 ? postsView : null
+		onMovementStarted: {
+			_keepView = -1; // Disable keep view
+		}
+		onContentHeightChanged: {
+			if (_keepView == -2) {
+				postsView.positionViewAtEnd();
+			} else if (_keepView >= 0) {
+				postsView.positionViewAtIndex(_keepView, ListView.Beginning);
+			}
+		}
+	}
+
 	ScrollDecorator {
 		flickableItem: postsView
 	}