1 files changed, 115 insertions, 0 deletions
diff --git a/power_sequencer/operators/trim_left_or_right_handles.py b/power_sequencer/operators/trim_left_or_right_handles.py
new file mode 100644
index 00000000..75a461da
--- /dev/null
+++ b/power_sequencer/operators/trim_left_or_right_handles.py
@@ -0,0 +1,115 @@
+#
+# Copyright (C) 2016-2019 by Nathan Lovato, Daniel Oakey, Razvan Radulescu, and contributors
+#
+# This file is part of Power Sequencer.
+#
+# Power Sequencer is free software: you can redistribute it and/or modify it under the terms of the
+# GNU General Public License as published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# Power Sequencer is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along with Power Sequencer. If
+# not, see <https://www.gnu.org/licenses/>.
+#
+from operator import attrgetter
+
+import bpy
+
+from .utils.doc import doc_brief, doc_description, doc_idname, doc_name
+
+
+class POWER_SEQUENCER_OT_trim_left_or_right_handles(bpy.types.Operator):
+    """
+    Trims or extends the handle closest to the time cursor for all selected strips.
+
+    If you keep the Shift key down, the edit will ripple through the timeline.
+    Auto selects sequences under the time cursor when you don't have a selection.
+    """
+
+    doc = {
+        "name": doc_name(__qualname__),
+        "demo": "",
+        "description": doc_description(__doc__),
+        "shortcuts": [
+            (
+                {"type": "K", "value": "PRESS", "alt": True},
+                {"side": "RIGHT", "ripple": False},
+                "Smart Snap Right",
+            ),
+            (
+                {"type": "K", "value": "PRESS", "alt": True, "shift": True},
+                {"side": "RIGHT", "ripple": True},
+                "Smart Snap Right With Ripple",
+            ),
+            (
+                {"type": "K", "value": "PRESS", "ctrl": True},
+                {"side": "LEFT", "ripple": False},
+                "Smart Snap Left",
+            ),
+            (
+                {"type": "K", "value": "PRESS", "ctrl": True, "shift": True},
+                {"side": "LEFT", "ripple": True},
+                "Smart Snap Left With Ripple",
+            ),
+        ],
+        "keymap": "Sequencer",
+    }
+    bl_idname = doc_idname(__qualname__)
+    bl_label = doc["name"]
+    bl_description = doc_brief(doc["description"])
+    bl_options = {"REGISTER", "UNDO"}
+
+    side: bpy.props.EnumProperty(
+        items=[("LEFT", "Left", "Left side"), ("RIGHT", "Right", "Right side")],
+        name="Snap side",
+        description="Handle side to use for the snap",
+        default="LEFT",
+    )
+    ripple: bpy.props.BoolProperty(name="Ripple", default=False)
+
+    @classmethod
+    def poll(cls, context):
+        return context.sequences
+
+    def execute(self, context):
+        frame_current = context.scene.frame_current
+
+        # Only select sequences under the time cursor
+        sequences = context.selected_sequences if context.selected_sequences else context.sequences
+        for s in sequences:
+            s.select = s.frame_final_start <= frame_current and s.frame_final_end >= frame_current
+        sequences = [s for s in sequences if s.select]
+        if not sequences:
+            return {"FINISHED"}
+
+        for s in sequences:
+            if self.side == "LEFT":
+                s.select_left_handle = True
+            if self.side == "RIGHT":
+                s.select_right_handle = True
+
+        # If trimming from the left, we need to save the start frame before trimming
+        ripple_start_frame = 0
+        if self.ripple and self.side == "LEFT":
+            ripple_start_frame = min(
+                sequences, key=attrgetter("frame_final_start")
+            ).frame_final_start
+
+        bpy.ops.sequencer.snap(frame=frame_current)
+        for s in sequences:
+            s.select_right_handle = False
+            s.select_left_handle = False
+
+        if self.ripple and sequences:
+            if self.side == "RIGHT":
+                ripple_start_frame = max(
+                    sequences, key=attrgetter("frame_final_end")
+                ).frame_final_end
+                bpy.ops.power_sequencer.gap_remove(frame=ripple_start_frame)
+            else:
+                bpy.ops.power_sequencer.gap_remove(frame=ripple_start_frame)
+
+        return {"FINISHED"}