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Merge pull request #200 from Checkmarx/feature/addFilterToCombobox
Add filter in project, branch and scan ComboBoxes(AST-64166)
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105 changes: 105 additions & 0 deletions
105
ast-visual-studio-extension/CxExtension/Toolbar/ComboboxBase.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Windows.Controls; | ||
| using System.Windows.Input; | ||
|
|
||
| namespace ast_visual_studio_extension.CxExtension.Toolbar | ||
| { | ||
| internal abstract class ComboboxBase | ||
| { | ||
| protected CxToolbar cxToolbar; | ||
| protected ComboBox comboBox; | ||
| protected string previousText = string.Empty; | ||
| protected bool isFiltered = false; | ||
| protected List<ComboBoxItem> allItems; | ||
| public ComboboxBase(CxToolbar cxToolbar, ComboBox comboBox) | ||
| { | ||
| this.cxToolbar = cxToolbar; | ||
| this.comboBox = comboBox; | ||
| allItems = new List<ComboBoxItem>(); | ||
| } | ||
| protected void ResetFilteringState(ComboBoxItem selectedItem) | ||
| { | ||
| previousText = selectedItem.Content.ToString(); | ||
| if (isFiltered) | ||
| { | ||
| Mouse.OverrideCursor = Cursors.Wait; | ||
| isFiltered = false; | ||
| UpdateCombobox(allItems); | ||
| comboBox.SelectedItem = selectedItem; | ||
| Mouse.OverrideCursor = null; | ||
| } | ||
| } | ||
| public void OnComboBoxTextChanged(object sender, EventArgs e) | ||
| { | ||
|
|
||
| if (comboBox == null || IsTextUnchanged()) return; | ||
|
|
||
| Mouse.OverrideCursor = Cursors.Wait; | ||
|
|
||
| TextBox textBox = GetTextBoxFromComboBox(); | ||
|
|
||
| if (textBox != null) | ||
| { | ||
| string newText = textBox.Text; | ||
| int savedSelectionStart = textBox.SelectionStart; | ||
|
|
||
| ResetOthersComboBoxesAndResults(); | ||
|
|
||
| UpdateComboBoxWithFilteredItems(newText); | ||
|
|
||
| comboBox.IsDropDownOpen = true; | ||
| RestoreTextBoxState(textBox, savedSelectionStart, newText); | ||
| } | ||
| Mouse.OverrideCursor = null; | ||
| } | ||
| private TextBox GetTextBoxFromComboBox() | ||
| { | ||
| return (TextBox)comboBox.Template.FindName("PART_EditableTextBox", comboBox); | ||
| } | ||
| private bool IsTextUnchanged() | ||
| { | ||
|
|
||
| if (comboBox.Text == previousText) return true; | ||
|
|
||
| previousText = comboBox.Text; | ||
| return false; | ||
| } | ||
| private void UpdateComboBoxWithFilteredItems(string newText) | ||
| { | ||
| comboBox.SelectedItem = null; | ||
|
|
||
| if (string.IsNullOrEmpty(newText)) | ||
| { | ||
| UpdateCombobox(allItems); | ||
| } | ||
| else | ||
| { | ||
| var filteredItems = allItems.Where(item => item.Content.ToString() | ||
| .IndexOf(newText, StringComparison.OrdinalIgnoreCase) >= 0) | ||
| .ToList(); | ||
| UpdateCombobox(filteredItems); | ||
| isFiltered = true; | ||
| } | ||
| } | ||
|
|
||
| private void RestoreTextBoxState(TextBox textBox, int selectionStart, string text) | ||
| { | ||
| textBox.Text = text; | ||
| textBox.SelectionStart = Math.Min(selectionStart, text.Length); | ||
| textBox.SelectionLength = 0; | ||
| } | ||
|
|
||
| protected void UpdateCombobox(List<ComboBoxItem> items) | ||
| { | ||
| comboBox.Items.Clear(); | ||
| foreach (var item in items) | ||
| { | ||
| comboBox.Items.Add(item); | ||
| } | ||
| } | ||
|
|
||
| protected abstract void ResetOthersComboBoxesAndResults(); | ||
| } | ||
| } |
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