tweetsearch.qml Example File | Qt Quick 5.9

Qt 5.9 | Qt Quick | Qt Quick Demo - Tweet Search | tweetsearch.qml Example File

Qt 5.9.2 Reference Documentation

# tweetsearch.qml Example File

demos/tweetsearch/tweetsearch.qml

      /****************************************************************************
      **
      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
      **
      ** This file is part of the examples of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:BSD$
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      **     contributors may be used to endorse or promote products derived
      **     from this software without specific prior written permission.
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      import QtQuick 2.0
      import "content"
      import "content/tweetsearch.js" as Helper

      Rectangle {
          id: main
          width: 320
          height: 480
          color: "#d6d6d6"

          property int inAnimDur: 250
          property int counter: 0
          property alias isLoading: tweetsModel.isLoading
          property var idx
          property var ids

          Component.onCompleted: ids = new Array()

          function idInModel(id)
          {
              for (var j = 0; j < ids.length; j++)
                  if (ids[j] === id)
                      return 1
              return 0
          }

          TweetsModel {
              id: tweetsModel
              onIsLoaded: {
                  console.debug("Reload")
                  idx = new Array()
                  for (var i = 0; i < tweetsModel.model.count; i++) {
                      var id = tweetsModel.model.get(i).id
                      if (!idInModel(id))
                          idx.push(i)
                  }
                  console.debug(idx.length + " new tweets")
                  main.counter = idx.length
              }
          }

          Timer {
              id: timer
              interval: 500; running: main.counter; repeat: true
              onTriggered: {
                  main.counter--;
                  var id = tweetsModel.model.get(idx[main.counter]).id
                  var item = tweetsModel.model.get(main.counter)
                  mainListView.add( { "statusText": Helper.insertLinks(item.text, item.entities),
                                      "twitterName": item.user.screen_name,
                                      "name" : item.user.name,
                                      "userImage": item.user.profile_image_url,
                                      "source": item.source,
                                      "id": id,
                                       "uri": Helper.insertLinks(item.user.url, item.user.entities),
                                      "published": item.created_at } );
                  ids.push(id)
              }
          }

          ListView {
              id: mainListView
              anchors.fill: parent
              delegate: TweetDelegate { }
              model: ListModel { id: finalModel }

              add: Transition {
                  NumberAnimation { property: "hm"; from: 0; to: 1.0; duration: 300; easing.type: Easing.OutQuad }
                  PropertyAction { property: "appear"; value: 250 }
              }

              onDragEnded: if (header.refresh) { tweetsModel.reload() }

              ListHeader {
                  id: header
                  y: -mainListView.contentY - height
              }

              footer: ListFooter { }

              function clear() {
                  ids = new Array()
                  model.clear()
              }

              function add(obj) {
                  model.insert(0, obj)
              }

              signal autoSearch(string type, string str) // To communicate with Footer instance
          }
      }